[1] Hosp Clin Barcelona, Dept Neurol, Movement Disorders Unit, Carrer Villarroel 170, Barcelona, Spain
[2] Hosp Gen Univ Gregorio Maranon, Dept Neurol, Calle Doctor Esquerdo 46, Madrid 28007, Spain
[3] Complejo Hosp Univ Ferrol, Hosp Arquitecto Marcide, Dept Internal Med, Neurol Sect, Av Residencia S-N, Ferrol 15405, A Coruna, Spain
[4] Hosp Univ Ramon y Cajal, Funct Neurosugery Unit, Carretera Colmenar Km 9,100, Madrid 28034, Spain
[5] Hosp Clin San Carlos, Dept Neurol, Prof Martin Lagos S-N, Madrid 28040, Spain
[6] Hosp Univ Insular Gran Canaria, Dept Neurol, Ave Maritima Sur S-N, Las Palmas Gran De Canar 35016, Spain
[7] Univ Autonoma Barcelona, Movement Disorders Unit, Dept Neurol, Hosp Mar,Inst Municipal Invest Med, Parc Salut Mar,Passeig Maritim 25-29, Barcelona 08003, Spain
[8] Univ Seville, Movement Disorders Unit, Dept Neurol, Hosp Univ Virgen del Rocio,Inst Biomed Sevilla,CS, Av Manuel Siurot S-N, Seville 41013, Spain
[9] Ctr Invest Biomed Red Enfermedades Neurodegenerat, Campus Cantoblanco, Madrid 28049, Spain
[10] AbbVie Spain SLU, Ave Burgos 91, Madrid 28050, Spain