1. Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California
2. Department of Urology, Sapienza Rome University, Rome, Italy
3. Department of Urology, Istituto Clinico Humanitas IRCCS-Clinical and Research Hospital, Rozzano, Milan, Italy
4. Epidemiology & Biostatistics, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, California