[1] MEM SLOAN KETTERING CANC CTR, DEPT MED, DIV SOLID TUMOR ONCOL, GENITOURINARY ONCOL SERV, NEW YORK, NY 10021 USA
[2] MEM SLOAN KETTERING CANC CTR, DEPT EPIDEMIOL & BIOSTAT, DIV BIOSTAT, NEW YORK, NY 10021 USA
[3] CORNELL UNIV, COLL MED, DEPT MED, NEW YORK, NY USA
[4] SW ONCOL GRP, SAN ANTONIO, TX USA