Kaplan Meier Estimates of Overall Survival (OS) for Patients Treated on A) E1684: HR= 0.82 [95% CI: 0.62, 1.08], B) E1690: HR=0.94 [95% CI: 0.73, 1.21] and C) E1694: HR=0.85 [95% CI: 0.71, 1.01] and D) E1694: Concurrent vs. GMK HR = 1.07 [95% CI: 0.59, 1.95]; Sequential vs. GMK HR = 0.91 [95% CI: 0.49, 1.68].