1 Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA. Electronic address: vickersa@mskcc.org.
2 Department of Urology, University of California San Francisco Comprehensive Cancer Center, San Francisco, CA, USA; Department of Epidemiology & Biostatistics, University of California San Francisco Comprehensive Cancer Center, San Francisco, CA, USA.
3 Section of Urology, Department of Surgery, The University of Chicago Comprehensive Cancer Center, Chicago, IL, USA.