[1] Etablissment Francais Sang, Immunogenet Lab, Fac Med, F-35000 Rennes, France
[2] Lab Univ Immunol, UPRES EA 1257, IFR 97, Rennes, France
[3] French Grp MS Genet, Paris, France
[4] INSERM, U535, Paris, France
[5] Ctr Natl Genotype, Evry, France
[6] INSERM, U563, Toulouse, France
[7] Hop Purpan, Serv Neurol, Toulouse, France
[8] Grp Hosp Pitie Salpetriere, Federat Neurol, F-75634 Paris, France
[9] Grp Hosp Pitie Salpetriere, INSERM U546, F-75634 Paris, France
[10] Eastern Piedmont Univ, Dept Med Sci, Novara, Italy
[11] Eastern Piedmont Univ, IRCAD, Novara, Italy
[12] Italian Grp MS Genet, Bari, Italy
[13] Univ Porto, IBMC, UniGENe, P-4100 Oporto, Portugal
[14] Portuguese Grp MS Genet, Oporto, Portugal
[15] Hop Pontchaillou, Neurol Clin, Rennes, France
[16] Univ Bari, Dept Neurol & Psychiat, Bari, Italy
[17] Univ Porto, ICBAS, Dept Patol & Imunol Mol, Immunogenet Lab, P-4100 Oporto, Portugal
[18] Univ Minho, Braga, Portugal