1 Division of Pediatric Urology, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
2 Division of General and Thoracic Surgery, Hospital for Sick Children, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Toronto, Ontario, Canada.
3 Department of Anesthesiology and Pain Medicine, Hospital for Sick Children, Toronto, Ontario, Canada.
4 Division of Pediatric Urology, Hospital for Sick Children, Toronto, Ontario, Canada; Abraham Diamond Medicine Professional Corporation.
5 Division of Pediatric Urology, Hospital for Sick Children, Toronto, Ontario, Canada; Division of General and Thoracic Surgery, Hospital for Sick Children, Toronto, Ontario, Canada.