Tumor recurrence data for patients with bladder cancer
- Treatment group: 1=placebo 2=thiotepa
- FU time and recurrence time are measured in months.
- Initial size of the largest tumor in centimeters.
- Initial number of tumors, `8' denotes 8 or more initial tumors.
- Up to 4 recurrence times are recorded per patient.
sample SAS code to read the data
Reference: Wei, Lin and Weissfeld, JASA 1989, p 1067.