Affiliation: | 1. Department of Urology, University of California San Francisco, San Francisco, CA;2. Department of Surgery, Division of Urology, University of Vermont Medical Center, Burlington, VT;3. Department of Urology, University of Pittsburgh Medical Center, Pittsburgh, PA;4. Department of Biostatistics and Epidemiology, University of California San Francisco, San Francisco, CA;1. University Hospitals of Leicester NHS Trust, UK;2. Clinical Research Unit in Pain Medicine, UK |