[1] CHU Bordeaux, Serv Chirurg Pediat, Hop Pellegrin Enfants, Bordeaux, France
[2] Connecticut Childrens Med Ctr, Dept Res, Div Urol, Hartford, CT USA
[3] Univ Toronto, Hosp Sick Children & Res Inst, Div Urol, Dept Surg,Dev & Stem Cell Biol, Toronto, ON, Canada
[4] Univ Toronto, Hosp Sick Children & Res Inst, Div Urol, Dept Physiol,Dev & Stem Cell Biol, Toronto, ON, Canada
[5] Indiana Univ, Riley Hosp Children, Indianapolis, IN 46204 USA
[6] Univ Amsterdam, Med Ctr Locat VUmc, Pediat Urol Sect, Dept Urol, Amsterdam, Netherlands
[7] Rigshosp, Copenhagen Univ Hosp, Dept Pediat Surg, Surg Clin C, Copenhagen, Denmark
[8] Karolinska Inst, Dept Womens & Childrens Hlth, Stockholm, Sweden
[9] Univ Montpellier, Serv Chirurg & Urol Pediat, Hop Lapeyronie, CHU Montpellier, Montpellier, France