[1] CHU Amiens, Serv Neurol, Hop Nord, Amiens, France
[2] CHU Lille, Serv Neurol & Pathol Mouvement, EA 2683, IMPRT, Lille, France
[3] CHU Lille, Unite Epidemiol, Pole Sante Publ, Lille, France
[4] CHU Lille, Serv Nutr, Lille, France
[5] CHU Lille, Unite Biostat, Pole Sante Publ, Lille, France
[6] Grp Hosp Pitie Salpetriere, AP HP, Serv Genet & Cytogenet, F-75634 Paris, France
[7] AP HP, Ctr Reference Malad Rare Malad Huntington, Creteil, France
[8] AP HP, Ctr Reference Malad Rare Malad Huntington, Paris, France
[9] INSERM, U837, F-59045 Lille, France
[10] Hop Enfants La Timone, Serv Neurol & Pathol Mouvement, Marseille, France
[11] CHU Angers, Serv Neurol, Angers, France
[12] Hop Civil, Serv Neurol, Strasbourg, France