1. Department of Urology, The James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
2. Division of Pediatric Urology, Cohen Children's Medical Center, Zucker School of Medicine at Hofstra/Northwell, New York, New York, USA.
3. Department of Urology, Oakland University William Beaumont School of Medicine, Royal Oak, Michigan, USA.
4. The Smith Institute for Urology at Lenox Hill, Zucker School of Medicine at Hofstra/Northwell, New York, New York, USA.