[1] Bordeaux Univ, Sch Publ Hlth, Bordeaux, France
[2] Hop Robert Debre, Pediat Nephrol, F-75019 Paris, France
[3] Hop Necker Enfants Malad, Pediat Nephrol, Paris, France
[4] Lyon Univ Hosp, Pediat Nephrol, Bron, France
[5] Lille Univ Hosp, Pediat Nephrol, Lille, France
[6] Nantes Univ Hosp, Pediat, Nantes, France
[7] Toulouse Univ Hosp, Pediat, Toulouse, France
[8] Marseille Univ Hosp, Pediat, Marseille, France
[9] Biomed Agcy, REIN, St Denis, France
[10] Bordeaux Univ Hosp, Pediat, Bordeaux, France