stime
| survival or follow-up time in days. |
status
| dead or censored. |
treat
| standard or test |
age
| patient's age in years |
Karn
| Karnofsky score of patient's performance on a scale of 0 to 100. |
diag.time
| times since diagnosis in months at entry to trial. |
cell
| one of four cell types. |
prior
| prior therapy? |