[1] Univ Paris V, Hop Necker Enfants Malad, AP HP, Serv Immunol,Hematol,Rhumatol,Pediat, 149 Rue Sevres, F-75015 Paris, France
[2] Univ Paris V, Hop Necker Enfants Malad, AP HP, Serv Neurophysiol,Ctr Reference Malad Neuromuscul, 149 Rue Sevres, F-75015 Paris, France
[3] Hop Femme Mere Enfant, Serv Nephrol & Rhumatol Pediat, F-69677 Bron, France
[4] Hop Enfants, Serv Nephrol Med Interne Pediat, F-31300 Toulouse, France
[5] AFMTELETHON, 1 Rue Int,BP 59, F-91002 Evry, France
[6] Hop Necker Enfants Malad, AP HP, Serv Reeducat Fonct, 149 Rue Sevres, F-75015 Paris, France
[7] Hop Charles Nicolle, Lab Immunol, F-76000 Rouen, France
[8] Hop La Pitie Salpetriere, Lab Immunol, F-75013 Paris, France
[9] Hop La Pitie Salpetriere, AP HP, Serv Med Interne & Immunol Clin, F-75013 Paris, France
[10] Univ Lille, Hop C Huriez, Serv Med Interne, F-59037 Lille, France
[11] Hop Hautepierre, Serv Rhumatol, F-67200 Strasbourg, France
[12] Hop Robert Debre, AP HP, Serv Dermatol Pediat, F-75019 Paris, France