1. The James Buchanan Brady Urological Institute, The Johns Hopkins Hospital (ACU, HDP, RA, MAG, MHJ, HG, MFR, BJT, MEA, PMP), Baltimore, Maryland
2. Division of Urology, Beth Israel Deaconess Medical Center (PC, AAW), Boston, Massachusetts
3. Department of Urology, Columbia University Medical Center (JMM), New York, New York