[1] Univ Claude Bernard Lyon 1, Hop Edouard Herriot, Serv Urol & Chirurg Transplantat, HCL, 5 Pl Arsonval, F-69437 Lyon 03, France
[2] Univ Paris 05, Hop Europeen Georges Pompidou, Serv Urol & Transplantat Renale, F-75015 Paris, France
[3] Univ Montpellier, CHU Montpellier, Serv Urol & Transplantat Renale, F-34000 Montpellier, France
[4] Univ Franche Comte, CHRU Besancon, Serv Urol & Transplantat Renale, Inserm UMR 1098, F-25000 Besancon, France
[5] Univ Claude Bernard Lyon 1, Hop Mere Enfant, HCL, Serv Chirurg Pediat, F-69437 Lyon, France