Published on in Vol 19, No 8 (2017): August
1 Zuckerberg San Francisco General Hospital, Department of Urology, University of California, San Francisco, San Francisco, CA, United States
2 Department of Surgery, King Abdulaziz University, Rabigh, Saudi Arabia
3 Dell Medical School, Department of Surgery, University of Texas, Austin, TX, United States
4 School of Medicine, Department of Urology, University of California, San Francisco, San Francisco, CA, United States
5 Department of Biostatistics and Epidemiology, University of California, San Francisco, San Francisco, CA, United States
*these authors contributed equally