Progression-free survival as a predictor of overall survival in metastatic renal cell carcinoma treated with contemporary targeted therapy

Daniel Y.C. Heng, Wanling Xie, Georg A. Bjarnason, Ulka Vaishampayan, Min Han Tan, Jennifer Knox, Frede Donskov, Lori Wood, Christian Kollmannsberger, Brian I. Rini, Toni K. Choueiri