| Affiliation: | 1. Parkinson''s Disease and Movement Disorders Unit, Neurology Service, ICN, Hospital Clínic, IDIBAPS, CIBERNED, University of Barcelona, Barcelona, Catalonia, Spain;2. Parkinson''s Disease and Movement Disorders Unit, Neurology Service, Segeberger Kliniken, Bad Segeberg, Germany;3. Neurology Unit, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana, Bogotá, Colombia;4. Statistics and Methodologic Support Unit, Unitat d''Avaluació, Suport i Prevenció (UASP), Hospital Clínic, IDIBAPS, Barcelona, Catalonia, Spain |
