1. From the University of Texas M.D. Anderson Cancer Center, Houston (R.L.C., K.B.-E.); Women’s Cancer Center of Nevada, Las Vegas (N.M.S.); NRG Oncology Statistical and Data Management Center, Roswell Park Cancer Institute, Buffalo (D.E., H.Q.H., M.F.B.), and Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York (P.S.) — both in New York; the University of Cincinnati, University of Cincinnati Cancer Institute, Cincinnati (T.J.H.); the Sidney Kimmel Comprehensive Cancer Center...