Affiliation: | a Division of Urologic Surgery, Duke University Medical Center, Durham, North Carolina b Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina c Department of Urology, School of Medicine, University of Virginia, Charlottesville, Virginia d Brady Urological Institute, The Johns Hopkins University, Baltimore, Maryland e Department of Urology, University of Texas Southwestern Medical Center, Dallas, Texas f Department of Urology, University of California-Los Angeles, Los Angeles, California |