[1] CHU Rennes, Dept Pediat, South Hosp, F-35203 Rennes, France
[2] CHU Robert Debre Hosp, Dept Pediat, Paris, France
[3] CHU Nantes, Dept Pediat, Mother Child Hosp, F-44035 Nantes 01, France
[4] CHU Toulouse, Dept Pediat, Childrens Hosp, Toulouse 9, France
[5] CHU Angers, Dept Pediat, Angers 01, France
[6] CHU Lyon, Dept Pediatrics, Woman Mother Child Hosp, Bron, France
[7] CHU Tours, Dept Pediat, CH Clocheville, Tours, France
[8] CHRU Lille, Dept Pediat, Jeanne de Flandre Hosp, Lille, France