title: Reply by the Authors.
authors.affiliation: Division of Urology, The Hospital for Sick Children, Toronto, ON, Canada; Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Roberto Iglesias
authors.initials: RI
authors.lastname: Lopes
authors.affiliation: Division of Urology, The Hospital for Sick Children, Toronto, ON, Canada; Department of Surgery, University of Toronto, Toronto, ON, Canada.
authors.forename: Armando J
authors.initials: AJ
authors.lastname: Lorenzo