[1] Hosp Santa Creu & Sant Pau, Neurol Dept, Movement Disorders Unit, Barcelona 08041, Spain
[2] Autonomous Univ Barcelona, Dept Med, E-08193 Barcelona, Spain
[3] Ctr Invest Red Enfermedades Neurodegenerat CIBERN, Madrid 28031, Spain
[4] Hosp Univ San Roque, Neurol Dept, Movement Disorders Unit, Las Palmas Gran Canaria 35001, Spain
[5] Univ Fernando Pessoa Canarias, Dept Med, Las Palmas Gran Canaria 35450, Spain
[6] Hosp Gen Univ Gregorio Maranon, Neurol Dept, CSUR, Movement Disorders Unit, Madrid 28007, Spain
[7] Univ Complutense Madrid, Dept Med, E-28040 Madrid, Spain
[8] CUN, Movement Disorders Unit, Pamplona 31008, Spain
[9] Navarra Inst Hlth Res IdiSNA, Pamplona 31008, Spain
[10] Inst Salud Carlos III, Madrid 28029, Spain
[11] Ctr Invest Biomed Red Enfermedades Neurodegenerat, Madrid 28031, Spain
[12] CUN, Neurol & Neurosci Unit, Pamplona 31008, Spain
[13] Ctr Appl Med Res CIMA, Pamplona 31008, Spain
[14] Hosp Clin Barcelona, Neurosci Inst, E-08036 Barcelona, Spain
[15] Univ Barcelona, Dept Med, E-08036 Barcelona, Spain
[16] Biomed Res Inst IIB St Pau, Barcelona 08041, Spain
[17] Univ Oberta Catalunya, Dept Med, Barcelona 08018, Spain