[1] Hop La Pitie Salpetriere, INSERM, U289, F-75651 Paris 13, France
[2] Hop La Pitie Salpetriere, Dept Genet Cytogenet & Embryol, U289, F-75651 Paris 13, France
[3] Univ Naples Federico II, Dept Neurol Sci, Naples, Italy
[4] Erasmus MC, Dept Clin Genet, Genet Epidemiol Unit, Rotterdam, Netherlands
[5] Erasmus MC, Dept Epidemiol & Biostat, Genet Epidemiol Unit, Rotterdam, Netherlands
[6] Univ Roma La Sapienza, Dept Neurol Sci, Rome, Italy
[7] Hop La Pitie Salpetriere, CHU Pitie Salpetriere, Paris, France
[8] Hop Pierre Wertheimer, Serv Neurol, Dept Neurol, Lyon, France
[9] CHU Grenoble, Serv Neurol, Dept Clin & Biol Neurosci, Grenoble, France