[1] Hop Gatien Clocheville, Unite Nephrol Pediat, F-37044 Tours, France
[2] Hop Antoine Beclere, Serv Hematol Biol, F-92141 Clamart, France
[3] Hop Bretonneau, Ctr Transfus Sanguine, F-37044 Tours, France
[4] Hop Trousseau, Hematol Lab, F-37044 Tours, France
[5] Hop Trousseau, Serv Nephrol Pediat, F-75571 Paris 12, France