Reply by the Authors

Affiliations

• ¹ Division of Urology, Department of Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada; Paediatric and Neonatal Surgery, Great Ormond Street Hospital, London, United Kingdom.
• ² The Hospital for Sick Children, Research Institute, Toronto, Ontario, Canada.
• ³ Division of Urology, Department of Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada; Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada; Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada.