MTTP: median time to progression; MST: median survival time; MPFS: median progression-free survival; Pts: patients; 95%CI: 95% confidence interval; significant difference: P value Comparison of MTTP,
All variables found in Experiments 1 and 2 that were added by the stepwise procedure. Note that some non-significant variables are added because the stepwise comparison is based on the Akaike informat
