[1] Hop St Louis, Serv Hematol Adulte, Paris, France
[2] CHU Lille, Hematol Lab, F-59037 Lille, France
[3] CHU Lille, Hematol Serv, F-59037 Lille, France
[4] Hop St Louis, Serv Pediat, Paris, France
[5] Hop Necker Enfants Malad, Hematol Serv, Paris, France