[1] Toulouse Rangueil Univ Hosp, Dept Urol Kidney Transplantat & Androl, TSA 50032, F-31059 Toulouse 9, France
[2] Bordeaux Univ Hosp, Dept Urol Kidney Transplantat & Androl, Bordeaux, France
[3] Nantes Univ Hosp, Res Board, Biostat Unit, Nantes, France
[4] Nantes Univ Hosp, ITUN, Nantes, France
[5] Toulouse Rangueil Univ Hosp, Dept Nephrol & Organ Transplantat, Toulouse, France