Publications

  1. Sami SS, Ravindran A, Kahn A, Snyder D, Santiago J, Ortiz-Fernandez-Sordo J, Tan WK, Dierkhising RA, Crook JE, Heckman MG, Johnson ML, Lansing R, Ragunath K, di Pietro M, Wolfsen H, Ramirez F, Fleischer D, Wang KK, Leggett CL, Katzka DA, Iyer PG. Timeline and location of recurrence following successful ablation in Barrett's oesophagus: an international multicentre study. Gut. 2019 Aug; 68 (8):1379-1385 Epub 2019 Jan 11
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  2. Repici A, Wallace MB, East JE, Sharma P, Ramirez FC, Bruining DH, Young M, Gatof D, Irene Mimi Canto M, Marcon N, Cannizzaro R, Kiesslich R, Rutter M, Dekker E, Siersema PD, Spaander M, Kupcinskas L, Jonaitis L, Bisschops R, Radaelli F, Bhandari P, Wilson A, Early D, Gupta N, Vieth M, Lauwers GY, Rossini M, Hassan C. Efficacy of Per-oral Methylene Blue Formulation for Screening Colonoscopy. Gastroenterology. 2019 Jun; 156 (8):2198-2207.e1 Epub 2019 Feb 10
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  3. Solanky D, Krishnamoorthi R, Crews N, Johnson M, Wang K, Wolfsen H, Fleischer D, Ramirez FC, Katzka D, Buttar N, Iyer PG. Barrett Esophagus Length, Nodularity, and Low-grade Dysplasia are Predictive of Progression to Esophageal Adenocarcinoma. J Clin Gastroenterol. 2019 May/Jun; 53 (5):361-365
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  4. Siddiki HA, Lam-Himlin DM, Kahn A, Bandres MV, Burdick GE, Crowell MD, Pannala R, Ramirez FC, Vela MF, Fleischer DE. Intestinal metaplasia of the gastric cardia: findings in patients with versus without Barrett's esophagus. Gastrointest Endosc. 2019 Apr; 89 (4):759-768 Epub 2018 Nov 14
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  5. David J, Backstedt D, O'Keefe KJ, Salehpour K, Gerkin RD, Ramirez FC. Effervescent agents in acute esophageal food impaction. Dis Esophagus. 2019 Apr 1; 32 (4)
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  6. Kahn A, Al-Qaisi MT, Obeid RA, Katzka DA, Ravi KM, Ramirez FC, Crowell MD, Vela MF. Clinical features and long-term outcomes of lower esophageal sphincter-dependent and lower esophageal sphincter-independent jackhammer esophagus. Neurogastroenterol Motil. 2019 Feb; 31 (2):e13507 Epub 2018 Nov 15
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  7. Al-Qaisi MT, Kahn A, Crowell MD, Burdick GE, Vela MF, Ramirez FC. Do recent reports about the adverse effects of proton pump inhibitors change providers' prescription practice? Dis Esophagus. 2018 Dec 1; 31 (12)
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  8. Siddiki H, Ravi S, Al-Qaisi MT, Fath AR, Ramirez F, Crowell MD, Pannala R, Faigel DO, Gurudu SR. Comparison of Small Versus Large Volume Split Dose Preparation for Colonoscopy: A Study of Colonoscopy Outcomes. Dig Dis Sci. 2018 Sep; 63 (9):2413-2418 Epub 2018 May 07
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  9. Kahn A, Al-Qaisi M, Kommineni VT, Callaway JK, Boroff ES, Burdick GE, Lam-Himlin DM, Temkit M, Vela MF, Ramirez FC. Longitudinal outcomes of radiofrequency ablation versus surveillance endoscopy for Barrett's esophagus with low-grade dysplasia. Dis Esophagus. 2018 Apr 1; 31 (4)
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  10. Gurudu SR, Boroff ES, Crowell MD, Atia M, Umar SB, Leighton JA, Faigel DO, Ramirez FC. Impact of feedback on adenoma detection rates: Outcomes of quality improvement program. J Gastroenterol Hepatol. 2018 Mar; 33 (3):645-649
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  11. Adike A, Buras MR, Gurudu SR, Leighton JA, Faigel DO, Ruff KC, Umar SB, Ramirez FC. Is the level of cleanliness using segmental Boston bowel preparation scale associated with a higher adenoma detection rate? Ann Gastroenterol. 2018 Mar-Apr; 31 (2):217-223 Epub 2018 Jan 31
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  12. Al-Qaisi MT, Siddiki HA, Crowell MD, Burdick GE, Fleischer DE, Ramirez FC, Vela MF. The clinical significance of hypercontractile peristalsis: comparison of high-resolution manometric features, demographics, symptom presentation, and response to therapy in patients with Jackhammer esophagus versus Nutcracker esophagus. Dis Esophagus. 2017 Dec 1; 30 (12):1-7
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  13. Adike A, El Kurdi BI, Gaddam S, Kosiorek HE, Fukami N, Faigel DO, Collins JM, Ramirez FC. Pancreatitis in Patients With Pancreas Divisum. Pancreas 2017 Nov/Dec; 46 (10):e80-e81
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  14. Gilani N, Rodriguez-Luna H, Hanif MF, Stipho S, Tharalson E, Young M, Ramirez F. Effectiveness of multidisciplinary approach in patients undergoing therapy for chronic hepatitis C. J Pak Med Assoc. 2017 Oct; 67 (10):1487-1492
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  15. Welch G, Ross HJ, Patel NP, Jaroszewski DE, Fleischer DE, Rule WG, Paripati HR, Ramirez FC, Ashman JB. Incidence of brain metastasis from esophageal cancer. Dis Esophagus. 2017 Sep 1; 30 (9):1-6
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  16. Krishnamoorthi R, Lewis JT, Krishna M, Crews NJ, Johnson ML, Dierkhising RA, Ginos BF, Wang KK, Wolfsen HC, Fleischer DE, Ramirez FC, Buttar NS, Katzka DA, Iyer PG. Predictors of Progression in Barrett's Esophagus with Low-Grade Dysplasia: Results from a Multicenter Prospective BE Registry. Am J Gastroenterol. 2017 Jun; 112 (6):867-873 Epub 2017 Apr 04
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  17. Kwon RS, Davila RE, Mullady DK, Al-Haddad MA, Young Bang J, Bingener-Case J, Bosworth BP, Christie JA, Cote GA, Diamond S, Jorgensen J, Kowalski TE, Kubilium N, Law JK, Obstein KL, Qureshi WA, Ramirez FC, Sedlack RE, Tsai F, Vignesh S, Wahir MS, Zanchetti D, Coyle WJ, Cohen J. EGD Core Curriculum Gastrointest Endosc. 2017; 2:162-8.
  18. Boroff ES, Disbrow M, Crowell MD, Ramirez FC. Adenoma and Polyp Detection Rates in Colonoscopy according to Indication. Gastroenterol Res Pract. 2017; 2017:7207595 Epub 2017 Dec 27
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  19. Safroneeva E, Straumann A, Coslovsky M, Zwahlen M, Kuehni CE, Panczak R, Haas NA, Alexander JA, Dellon ES, Gonsalves N, Hirano I, Leung J, Bussmann C, Collins MH, Newbury RO, De Petris G, Smyrk TC, Woosley JT, Yan P, Yang GY, Romero Y, Katzka DA, Furuta GT, Gupta SK, Aceves SS, Chehade M, Spergel JM, Schoepfer AM, International Eosinophilic Esophagitis Activity Index Study Group. Symptoms Have Modest Accuracy in Detecting Endoscopic and Histologic Remission in Adults With Eosinophilic Esophagitis. Gastroenterology. 2016 Mar; 150 (3):581-590.e4 Epub 2015 Nov 14
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  20. Sedlack RE, Coyle WJ, ACE Research Group. Assessment of competency in endoscopy: establishing and validating generalizable competency benchmarks for colonoscopy. Gastrointest Endosc. 2016 Mar; 83 (3):516-23.e1 Epub 2015 June 13
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  21. Ratuapli SK, Ruff KC, Ramirez FC, Wu Q, Mohankumar D, Santello M, Fleischer DE. Kinematic analysis of wrist motion during simulated colonoscopy in first-year gastroenterology fellows. Endosc Int Open. 2015 Dec; 3 (6):E621-6 Epub 2015 Nov 05
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  22. Atia MA, Patel NC, Ratuapli SK, Boroff ES, Crowell MD, Gurudu SR, Faigel DO, Leighton JA, Ramirez FC. Nonneoplastic polypectomy during screening colonoscopy: the impact on polyp detection rate, adenoma detection rate, and overall cost. Gastrointest Endosc. 2015 Aug; 82: (2)370-375.e1.
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  23. Ratuapli SK, Crowell MD, DiBaise JK, Vela MF, Ramirez FC, Burdick GE, Lacy BE, Murray JA. Opioid-Induced Esophageal Dysfunction (OIED) in Patients on Chronic Opioids. Am J Gastroenterol. 2015 Jul; 110 (7):979-84 Epub 2015 June 02
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  24. Atia MA, Ramirez FC, Gurudu SR. Quality monitoring in colonoscopy: Time to act. World J Gastrointest Endosc. 2015 Apr 16; 7 (4):328-35
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  25. Gilani N, Patel K, Ramirez FC, Gerkin RD. Reliability of narrow band imaging to differentiate hyperplastic versus adenomatous polyps: interobserver and intraobserver agreement among experienced endoscopists. J Interv Gastroenterol. 2015; 5:10-15.
  26. Gilani N, Stipho S, Panetta JD, Petre S, Young MA, Ramirez FC. Polyp detection rates using magnification with narrow band imaging and white light. World J Endosc. 2015; 7(5):555-62.
  27. Franco DL, Disbrow MB, Kahn A, Koepke LM, Harris LA, Harrison ME, Crowell MD, Ramirez FC. Duodenal Aspirates for Small Intestine Bacterial Overgrowth: Yield, PPIs, and Outcomes after Treatment at a Tertiary Academic Medical Center. Gastroenterol Res Pract. 2015; 2015:971582 Epub 2015 Jan 28
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  28. Schoepfer AM, Straumann A, Panczak R, Coslovsky M, Kuehni CE, Maurer E, Haas NA, Romero Y, Hirano I, Alexander JA, Gonsalves N, Furuta GT, Dellon ES, Leung J, Collins MH, Bussmann C, Netzer P, Gupta SK, Aceves SS, Chehade M, Moawad FJ, Enders FT, Yost KJ, Taft TH, Kern E, Zwahlen M, Safroneeva E, International Eosinophilic Esophagitis Activity Index Study Group. Development and validation of a symptom-based activity index for adults with eosinophilic esophagitis. Gastroenterology. 2014 Dec; 147 (6):1255-66.e21 Epub 2014 Aug 23
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  29. Ratuapli SK, Hansel SL, Umar SB, Burdick GE, Ramirez FC, Fleischer DE, Harris LA, Lacy BE, DiBaise JK, Crowell MD. Esophageal peristaltic defects in adults with functional dysphagia. Dysphagia. 2014 Aug; 29 (4):519-26 Epub 2014 June 04
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  30. Mohankumar D, Garner H, Ruff K, Ramirez FC, Fleischer D, Wu Q, Santello M. Characterization of right wrist posture during simulated colonoscopy: an application of kinematic analysis to the study of endoscopic maneuvers. Gastrointest Endosc. 2014 Mar; 79(3):480-9. Epub 2014 Jan 17.
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  31. Ratuapli SK, Gurudu SR, Atia MA, Crowell MD, Umar SB, Harrison ME, Leighton JA, Ramirez FC. Postcolonoscopy Follow up Recommendations: Comparison with and without Use of Polyp Pathology. Diagn Ther Endosc. 2014; 2014:683491 Epub 2014 Aug 27
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  32. Patel NC, Atia MA, Islam RS, Ramirez FC, Crowell MD, Gurudu SR. Sessile serrated adenoma detection rate correlates with adenoma detection rate in the proximal colon. J Interv Gastroenterol. 2014; 4(3):68-72.
  33. Dzeletovic I, Fleischer DE, Crowell MD, Pannala R, Harris LA, Ramirez FC, Burdick GE, Rentz LA, Spratley RV Jr, Helling SD, Alexander JA. Self-dilation as a treatment for resistant, benign esophageal strictures. Dig Dis Sci. 2013 Nov; 58 (11):3218-23 Epub 2013 Aug 08
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  34. Boroff ES, Gurudu SR, Hentz JG, Leighton JA, Ramirez FC. Polyp and adenoma detection rates in the proximal and distal colon. Am J Gastroenterol. 2013 Jun; 108(6):993-9. Epub 2013 Apr 09.
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  35. Dzeletovic I, Harrison ME, Crowell MD, Ramirez FC, Yows CR, Harris LA, Pasha SF, Gurudu SR, Leighton JA, Heigh RI. Impact of fentanyl in lieu of meperidine on endoscopy unit efficiency: a prospective comparative study in patients undergoing EGD. Gastrointest Endosc. 2013 Jun; 77(6):883-7. Epub 2013 Mar 06.
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  36. Gurudu SR, Ramirez FC. Quality metrics in endoscopy. Gastroenterol Hepatol (N Y). 2013 Apr; 9 (4):228-33
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  37. Patel NC, Islam RS, Wu Q, Gurudu SR, Ramirez FC, Crowell MD, Faigel DO. Measurement of polypectomy rate by using administrative claims data with validation against the adenoma detection rate. Gastrointest Endosc. 2013 Mar; 77(3):390-4. Epub 2012 Nov 27.
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  38. Stauder MC, Romero Y, Kabat B, Atherton PJ, Geno D, Deschamps C, Jatoi A, Sloan JA, Botros M, Jung KW, Arora AS, Miller RC, EABE Registry Consortium. Overall survival and self-reported fatigue in patients with esophageal cancer. Support Care Cancer. 2013 Feb; 21 (2):511-9 Epub 2012 July 29
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  39. Banks PA, Bollen TL, Dervenis C, Gooszen HG, Johnson CD, Sarr MG, Tsiotos GG, Vege SS, Acute Pancreatitis Classification Working Group. Classification of acute pancreatitis--2012: revision of the Atlanta classification and definitions by international consensus. Gut. 2013 Jan; 62(1):102-11. Epub 2012 Oct 25.
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  40. Yuan J, Hernandez JC, Ratuapli SK, Ruff KC, De Petris G, Lam-Himlin DM, Burdick GE, Pannala R, Ramirez FC, Fleischer DE. Prevalence of buried Barrett's metaplasia in patients before and after radiofrequency ablation. Endoscopy. 2012 Nov; 44(11):993-7. Epub 2012 Oct 29.
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  41. Gurudu SR, Ramirez FC, Harrison ME, Leighton JA, Crowell MD. Increased adenoma detection rate with system-wide implementation of a split-dose preparation for colonoscopy. Gastrointest Endosc. 2012 Sep; 76(3):603-8.e1. Epub 2012 Jun 23.
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  42. Leung FW, Amato A, Ell C, Friedland S, Harker JO, Hsieh YH, Leung JW, Mann SK, Paggi S, Pohl J, Radaelli F, Ramirez FC, Siao-Salera R, Terruzzi V. Water-aided colonoscopy: a systematic review. Gastrointest Endosc. 2012 Sep; 76(3):657-66.
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  43. Ramirez FC. Re-learning colonoscopy: just a matter of time. J Interv Gastroenterol. 2012 Jul; 2 (3):133-134 Epub 2012 July 01
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  44. Stipho S, Tharalson E, Hakim S, Akins R, Shaukat M, Ramirez FC. String capsule endoscopy for screening and surveillance of esophageal varices in patients with cirrhosis. J Interv Gastroenterol. 2012 Apr; 2: (2)54-60.
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  45. Pasha SF, Leighton JA, Das A, Harrison ME, Gurudu SR, Ramirez FC, Fleischer DE, Sharma VK. Comparison of the yield and miss rate of narrow band imaging and white light endoscopy in patients undergoing screening or surveillance colonoscopy: a meta-analysis. Am J Gastroenterol. 2012 Mar; 107(3):363-70; quiz 371. Epub 2011 Dec 20.
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  46. Gurudu SR, Ramirez FC. Quality measurement and improvement in colonoscopy. Tech. Gastrointest. Endosc. 2012; 14(1):21-8.
  47. Leung FW, Leung JW, Mann SK, Friedland S, Ramirez FC. The water method significantly enhances patient-centered outcomes in sedated and unsedated colonoscopy. Endoscopy. 2011 Sep; 43(9):816-21. Epub 2011 May 24.
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  48. Ishimura N, Amano Y, Appelman HD, Penagini R, Tenca A, Falk GW, Wong RK, Gerson LB, Ramirez FC, Horwhat JD, Lightdale CJ, DeVault KR, Freschi G, Taddei A, Bechi P, Ringressi MN, Castiglione F, Rossi Degl'Innocenti D, Wang HH, Huang Q, Bellizzi AM, Lisovsky M, Srivastava A, Riddell RH, Johnson LF, Saunders MD, Chuttani R. Barrett's esophagus: endoscopic diagnosis. Ann N Y Acad Sci. 2011 Sep; 1232:53-75.
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  49. Ramirez FC, Leung FW. A head-to-head comparison of the water vs. air method in patients undergoing screening colonoscopy. J Interv Gastroenterol. 2011 Jul; 1 (3):130-135 Epub 2011 July 01
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  50. Ramirez FC, Leung FW. The water method for aiding colonoscope insertion: the learning curve of an experienced colonoscopist. J Interv Gastroenterol. 2011 Jul; 1 (3):97-101 Epub 2011 July 01
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  51. Shah DK, Karasek V, Gerkin RD, Ramirez FC, Young MA. Sex preferences for colonoscopists and GI physicians among patients and health care professionals. Gastrointest Endosc. 2011 Jul; 74: (1)122-127.e2.
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  52. Leung F, Harker J, Leung J, Siao-Salera R, Mann S, Ramirez FC, Friedland S, Amato A, Radaelli F, Paggi S, Terruzzi V, Hsieh Y. Removal of infused water predominantly during insertion (water exchange) is consistently associated with a greater reduction of pain score - review of randomized controlled trials (RCTs) of water method colonoscopy. J Interv Gastroenterol. 2011 Jul; 1: (3)114-120.
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  53. Leung F, Harker J, Leung J, Siao-Salera R, Mann S, Ramirez FC, Friedland S, Amato A, Radaelli F, Paggi S, Terruzzi V, Hsieh Y. Removal of infused water predominantly during insertion (water exchange) is consistently associated with an increase in adenoma detection rate - review of data in randomized controlled trials (RCTs) of water-related methods. J Interv Gastroenterol. 2011 Jul; 1: (3)121-126.
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  54. Leung FW, Leung JW, Mann SK, Friedland S, Ramirez FC, Olafsson S. DDW 2011 cutting edge colonoscopy techniques - state of the art lecture master class - warm water infusion/CO(2) insufflation for colonoscopy. J Interv Gastroenterol. 2011 Apr; 1: (2)78-82.
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  55. Ramirez FC, Leung FW. The water method is associated iwth higher adenoma detection rate (ADR) - a head-to-head comparative study. Gastrointestinal Endoscopy.;73(4, Supplement)AB137.
  56. Khan B, Ramirez FC, Shaukat M, Gilani N, Shah DK. String capsule endoscopy: a novel application for the preoperative identification of a small-bowel obscure GI bleeding source (with video). Gastrointest Endosc. 2011 Feb; 73(2):403-5. Epub 2010 Jul 13.
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  57. Ramirez FC, Osato MS, Graham DY, Woods KL. Addition of gentamicin to endoscopic retrograde cholangiopancreatography (ERCP) contrast medium towards reducing the frequency of septic complications of ERCP. J Dig Dis. 2010 Aug; 11(4):237-43.
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  58. Rodriguez-Lung H, Stipho S, Tharalson E, Evanich E, Gilani N, Johnson SA, Ramirez FC. Treatment of naive veteran patients infected with hepatitis C virus: a single center clinical experience with pegylated interferons-alpha (2a and 2b) and ribavirin. Am J Gastroenterol. 2010.
  59. Ramirez FC, Leung FW. Adopting the water method: Lessons, tips, and pitfalls learned. Am J Clin Med.;7(3)137-9.
  60. Gilani N, Patel N, Gerkin RD, Ramirez FC, Tharalson EE, Patel K. The safety and feasibility of large volume paracentesis performed by an experienced nurse practitioner. Ann Hepatol. 2009 Oct-Dec; 8(4):359-63.
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  61. Ramirez FC, Akins R, Shaukat M. Screening of Barrett's esophagus with string-capsule endoscopy: a prospective blinded study of 100 consecutive patients using histology as the criterion standard. Gastrointest Endosc. 2008 Jul; 68(1):25-31. Epub 2008 May 21.
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  62. Gilani N, Gerkin RD, Ramirez FC, Hakim S, Randolph AC. Prevalence of Barrett's esophagus in patients with moderate to severe erosive esophagitis. World J Gastroenterol. 2008 Jun 14; 14(22):3518-22.
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  63. Gilani N, Stipho S, Shaukat MS, Akins R, Ramirez FC. The yield and safety of string capsule endoscopy in patients with dysphagia. Gastrointest Endosc. 2007 Dec; 66(6):1091-5. Epub 2007 Oct 29.
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  64. Lieberman DA, Weiss DG, Harford WV, Ahnen DJ, Provenzale D, Sontag SJ, Schnell TG, Chejfec G, Campbell DR, Kidao J, Bond JH, Nelson DB, Triadafilopoulos G, Ramirez FC, Collins JF, Johnston TK, McQuaid KR, Garewal H, Sampliner RE, Esquivel R, Robertson D. Five-year colon surveillance after screening colonoscopy. Gastroenterology. 2007 Oct; 133(4):1077-85.
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  65. Ramirez FC, Colon VJ, Landan D, Grade AJ, Evanich E. The effects of the number of rubber bands placed at each endoscopic session upon variceal outcomes: a prospective, randomized study. Am J Gastroenterol. 2007 Jul; 102(7):1372-6. Epub 2007 Apr 16.
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  66. Gilani N, Ramirez FC. Endoscopic resection of an ampullary carcinoid presenting with upper gastrointestinal bleeding: a case report and review of the literature. World J Gastroenterol. 2007 Feb 28; 13(8):1268-70.
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  67. Ramirez FC, Hakim S, Tharalson EM, Shaukat MS, Akins R. Feasibility and safety of string wireless capsule endoscopy in the diagnosis of esophageal varices. Am J Gastroenterol. 2005 May; 100(5):1065-71.
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  68. Ramirez FC, Shaukat MS, Young MA, Johnson DA, Akins R. Feasibility and safety of string, wireless capsule endoscopy in the diagnosis of Barrett's esophagus. Gastrointest Endosc. 2005 May; 61(6):741-6.
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  69. Collins JF, Lieberman DA, Durbin TE, Weiss DG, VA Cooperative Study Group 380. Accuracy of screening for fecal occult blood on a single sample obtained by digital rectal examination: a comparison with recommended sampling practice. Ann Intern Med. 2005; 142:81-5.
  70. Dickman R, Green C, Chey WD, Jones MP, Eisen GM, Ramirez F, Briseno M, Garewal HS, Fass R. Clinical predictors of Barrett's esophagus length. Gastrointest Endosc. 2005; 62:675-81.
  71. Alberts DS, Martinez ME, Hess LM, Einspahr JG, Green SB, Bhattacharyya AK, Guillen J, Krutzsch M, Batta AJ, Salen G, Fales L, Koonce K, Parish D, Clouser M, Roe D, Lance P, Phoenix. Phase III Trial of Ursodeoxycholic acid to prevent colorectal adenoma recurrence. JNCI. 2005; 97:846-53.
  72. Disario JA, Freeman ML, Bjorkman DJ, Macmathuna P, Petersen BT, Jaffe PE, Morales TG, Hixson LJ, Sherman S, Lehman GA, Jamal MM, Al-Kawas FH, Khandelwal M, Moore JP, Derfus GA, Jamidar PA, Ramirez FC, Ryan ME, Woods KL, Carr-Locke DL, Alder SC. Endoscopic balloon dilation compared with sphincterotomy for extraction of bile duct stones. Gastroenterology. 2004 Nov; 127(5):1291-9.
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  73. Ramirez FC, Holland JF, Harker J, Leung FW. Effect of acid on duodenal blood flow and mucus secretion measured by reflectance spectrophotometry: a prospective, randomized-controlled study. Aliment Pharmacol Ther. 2004 Sep 1; 20(5):517-25.
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  74. Padda S, Shah I, Ramirez FC. Adequacy of mucosal sampling with the "two-bite" forceps technique: a prospective, randomized, blinded study. Gastrointest Endosc. 2003 Feb; 57(2):170-3.
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  75. Lynch KL, Ahnen DJ, Byers T, Weiss DG, Leiberman DA, VA Cooperative Study Group 380. First-degree relatives of patients with advanced colorectal adenomas have an increased prevalence of colorectal cancer. Clin Gastroenterol Hepatol. 2003; 1:96-102.
  76. Lieberman DA, Prindiville S, Weiss DG, Willett W, VA Cooperative Study Group 380. Risk factors for advanced colonic neoplasia and hyperplastic polyps in asymptomatic individuals. JAMA. 2003; 290:2959-67.
  77. Mumtaz R, Shah IA, Ramirez FC. Brunner's gland hamartoma simulating a pancreatic mass with duodenal obstruction. Gastrointest Endosc. 2002 Dec; 56(6):932-4.
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  78. Ramirez FC, Padda S, Medlin S, Tarbell H, Leung FW. Reflectance spectrophotometry in the gastrointestinal tract: limitations and new applications. Am J Gastroenterol. 2002 Nov; 97(11):2780-4.
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  79. Yamaoka Y, Orito E, Mizokami M, Gutierrez O, Saitou N, Kodama T, Osato MS, Kim JG, Ramirez FC, Mahachai V, Graham DY. Helicobacter pylori in North and South America before Columbus. FEBS Lett. 2002 Apr 24; 517(1-3):180-4.
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  80. Nelson DB, McQuaid KR, Bond JH, Lieberman DA, Weiss DG, Johnston TK, VA Cooperative Study Group 380. Procedural success and complications of large-scale screening colonoscopy. Gastrointest Endosc. 2002; 55:307-14.
  81. Padda S, Ramirez FC. Accuracy in the diagnosis of short-segment Barrett's esophagus: the role of endoscopic experience. Gastrointest Endosc. 2001 Nov; 54(5):605-8.
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  82. Lieberman DA, Weiss DG, VA Cooperative Study Group 380. One time screening for colo-rectal cancer with combined fecal occult blood testing and examination of the distal colon. N Eng J Med. 2001; 345:555-60.
  83. Spechler SJ, Lee E, Ahnen D, Goyal RK, Hirano I, Ramirez F, et al. Long-term outcome of medical and surgical treatments for gastroesophageal reflux disease. JAMA. 2001; 285:2331-8.
  84. Ramirez FC. Diagnosis and treatment of gastroesophageal reflux disease in the elderly. Cleve Clin J Med. 2000 Oct; 67(10):755-66.
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  85. Shaukat MS, Ramirez FC. The utilization of flexible sigmoidoscopy by family practitioners after residency training. Gastrointest Endosc. 2000 Jul; 52(1):45-7.
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  86. Colon VJ, Young MA, Ramirez FC. The short- and long-term efficacy of empirical esophageal dilation in patients with nonobstructive dysphagia: a prospective, randomized study. Am J Gastroenterol. 2000 Apr; 95(4):910-3.
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  87. Lieberman DA, Weiss DG, Bond JH, Ahnen DJ, Garewal H, Chejfec G, VA Cooperative Study Group 380. Use of colonoscopy to screen asymptomatic adults for colorectal cancer. N Eng J Med. 2000; 343:162-8.
  88. Grade AJ, Shah IA, Medlin SM, Ramirez FC. The efficacy and safety of argon plasma coagulation therapy in Barrett's esophagus. Gastrointest Endosc. 1999 Jul; 50(1):18-22.
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  89. Ramirez FC. Small bowel bleeding. Curr Treat Options Gastroenterology. 1999; 2:355-62.
  90. Ramirez FC, Dennert B, Sanowski RA. Success of repeat ERCP by the same endoscopist. Gastrointest Endosc. 1999 Jan; 49(1):58-61.
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  91. Ramirez FC, McIntosh AS, Dennert B, Harlan JR. Emergency endoscopic retrograde cholangiopancreatography in critically ill patients. Gastrointest Endosc. 1998 May; 47(5):368-71.
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  92. Drewitz DJ, Shub MD, Ramirez FC. Gastrospirillum hominis gastritis in a child with celiac sprue. Dig Dis Sci. 1997 May; 42(5):1083-6.
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  93. Saeed ZA, Ramirez FC, Hepps KS, Cole RA, Schneider FE, Ferro PS, Graham DY. An objective end point for dilation improves outcome of peptic esophageal strictures: a prospective randomized trial. Gastrointest Endosc. 1997 May; 45(5):354-9.
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  94. Ramirez FC, Dennert B, Zierer ST, Sanowski RA. Esophageal self-expandable metallic stents--indications, practice, techniques, and complications: results of a national survey. Gastrointest Endosc. 1997 May; 45(5):360-4.
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  95. Ramirez FC, Grade AJ, Drewitz DJ, Shaukat MS. Diagnostic and therapeutic endoscopy through the gastrostomy site. J Clin Gastroenterol. 1997 Mar; 24(2):113-5.
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  96. Dennert B, Ramirez FC, Sanowski RA. A prospective evaluation of the endoscopic spectrum of overtube-related esophageal mucosal injury. Gastrointest Endosc. 1997 Feb; 45(2):134-7.
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  97. Shah IA, Dolan WV, Ramirez FC, Igbal J. Diagnosis of early peri-ampullary carcinoma. Dig Surg. 1997; 817:1-6.
  98. Saeed ZA, Stiegmann GV, Ramirez FC, Reveille RM, Goff JS, Hepps KS, Cole RA. Endoscopic variceal ligation is superior to combined ligation and sclerotherapy for esophageal varices: a multicenter prospective randomized trial. Hepatology. 1997 Jan; 25(1):71-4.
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  99. Dennert B, Ramirez FC, Sanowski RA. Pericardioesophageal fistula associated with metallic stent placement. Gastrointest Endosc. 1997 Jan; 45(1):82-4.
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  100. Dennert B, Ramirez FC, Zierer ST, Mills MR, Sanowski RA. Rescuing the retractable injection needle through the duodenoscope. Gastrointest Endosc. 1997 Jan; 45(1):95-6.
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  101. Ramirez FC, Zierer ST, Mills MR, Sanowski RA. Endoscopic removal of an entrapped foreign body from the sigmoid colon using a needle knife. Gastrointest Endosc. 1996 Jul; 44(1):84-5.
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  102. Ramirez FC, Walker GJ, Sanowski RA, Manne RK, Stone HH. Obstructive jaundice due to Coccidioides immitis. Gastrointest Endosc. 1996 May; 43(5):505-7.
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  103. Saeed ZA, Cole RA, Ramirez FC, Schneider FE, Hepps KS, Graham DY. Endoscopic retreatment after successful initial hemostasis prevents ulcer rebleeding: a prospective randomized trial. Endoscopy. 1996 Mar; 28(3):288-94.
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  104. Ramirez FC, Johnson DA, Zierer ST, Walker GJ, Sanowski RA. Successful endoscopic hemostasis of bleeding colonic diverticula with epinephrine injection. Gastrointest Endosc. 1996 Feb; 43(2 Pt 1):167-70.
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  105. Parrington DJ, Ramirez FC. Identification and treatment of esophageal dysphagia in the geriatric population. Clin Geriatr. 1996; 4:59-73.
  106. Saeed ZA, Ramirez FC, Hepps KS, Cole RA, Graham DY. Prospective validation of the Baylor bleeding score for predicting the likelihood of rebleeding after endoscopic hemostasis of peptic ulcers. Gastrointest Endosc. 1995 Jun; 41(6):561-5.
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  107. al-Assi MT, Ramirez FC, Lew GM, Genta RM, Graham DY. Clarithromycin, tetracycline, and bismuth: a new non-metronidazole therapy for Helicobacter pylori infection. Am J Gastroenterol. 1994 Aug; 89(8):1203-5.
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  108. Ramirez FC, Lee K, Graham DY. All lactase preparations are not the same: results of a prospective, randomized, placebo-controlled trial. Am J Gastroenterol. 1994 Apr; 89(4):566-70.
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  109. Graham DY, Hepps KS, Ramirez FC, Lew GM, Saeed ZA. Treatment of Helicobacter pylori reduces the rate of rebleeding in peptic ulcer disease. Scand J Gastroenterol. 1993 Nov; 28(11):939-42.
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  110. Saeed ZA, Ramirez FC, Hepps KS. Endoscopic stent placement for internal and external pancreatic fistulas. Gastroenterology. 1993 Oct; 105(4):1213-7.
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  111. Saeed ZA, Ramirez FC, Hepps KS, Dixon WB. A method for the endoscopic retrieval of trichobezoars. Gastrointest Endosc. 1993 Sep-Oct; 39(5):698-700.
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  112. Ramirez FC, Clarridge JE, Heiser MC, Michaletz PA, Schwartz JT, Saeed ZA, Graham DY. A study of the frequency of recovery of unexpected Giardia lamblia and Cryptosporidium from duodenal aspirates taken during routine upper endoscopy. Am J Gastroenterol. 1993 Apr; 88(4):552-4.
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  113. Graham DY, Lew GM, Ramirez FC, Genta RM, Klein PD, Malaty HM. Short report: a non-metronidazole triple therapy for eradication of Helicobacter pylori infection--tetracycline, amoxicillin, bismuth. Aliment Pharmacol Ther. 1993 Feb; 7(1):111-3.
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  114. Ramirez FC, Saeed ZA, Darouiche RO, Shawar RM, Yoffe B. Agrobacterium tumefaciens peritonitis mimicking tuberculosis. Clin Infect Dis. 1992 Dec; 15(6):938-40.
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  115. Ramirez FC, Graham DY. Treatment of intractable hiccup with baclofen: results of a double-blind randomized, controlled, cross-over study. Am J Gastroenterol. 1992 Dec; 87(12):1789-91.
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  116. Saeed ZA, Ramirez FC. The endoscopic therapy of bleeding from portal hypertension. Sem Gastro Dis. 1992; 3:89-98.
  117. Saeed ZA, Michaletz PA, Winchester CB, Woods KL, Dixon WB, Hieser MC, Gentry KR, Ramirez FC. Endoscopic variceal ligation in patients who have failed endoscopic sclerotherapy. Gastrointest Endosc. 1990 Nov-Dec; 36(6):572-4.
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  118. Holt S, Vasudeva R, Ramirez F, Powers RE. Somatostatin and the gastrointestinal tract: Physiology and therapeutic potential. Internal Medicine for the Specialist. 1990; 11:49-62.
  119. Barenfanger J, Ramirez F, Tewari RP, Eagleton L. Pulmonary phaeohyphomycosis in a patient with hemoptysis. Chest. 1989; 95:1158-60.