title: Reply by the Authors.
authors.affiliation: Service de chirurgie pédiatrique, Hôpital des Enfants, Limoges, France.
authors.forename: Quentin
authors.initials: Q
authors.lastname: Ballouhey
authors.affiliation: Service de chirurgie pédiatrique, Hôpital des Enfants, Limoges, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Fourcade
authors.affiliation: Service d'urologie, Hôpital Universitaire, Limoges, France.
authors.forename: Aurélien
authors.initials: A
authors.lastname: Descazeaud
authors.affiliation: Service de pédiatrie, Hôpital des Enfants, Limoges, France.
authors.forename: Vincent
authors.initials: V
authors.lastname: Guigonis