1. Department of Surgery, Division of Urology, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
2. Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
3. Applied Clinical Research Center, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
4. Department of Surgery, Division of Urology, Children’s Hospital Colorado, Aurora, Colorado
5. Department of Pediatric Urology, Nationwide Children’s Hospital, Columbus, Ohio
6. Department of Surgery, Division of Urology, Nemours Children’s Health, Wilmington, Delaware
7. Department of Surgery, Division of Urology, Cincinnati Children’s Hospital and Medical Center, Cincinnati, Ohio
8. Department of Surgery, Division of Urology, Seattle Children’s Hospital, Seattle, Washington
9. Department of Pediatrics, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
10. Department of Urology, Children’s Wisconsin & Medical College of Wisconsin, Milwaukee, Wisconsin