1. Division of Urology, Seattle Children's Hospital, University of Washington, Seattle, Washington, United States
2. Division of Urology, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
3. Human Genetics Institute, Pontificia Universidad Javeriana. Bogotá, Colombia
4. Division of Pediatric Surgery, Department of Surgery, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia
5. Hospital Universitario San Ignacio, Bogotá, Colombia