1. Neurology Service, Department of Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
2. Lemanic Neuroscience Doctoral School, Faculté de Biologie et de Médecine, Université de Lausanne, Lausanne, Switzerland
3. Division of Geriatrics and rehabilitation, Department of Rehabilitation and Geriatrics, University Hospitals and University of Geneva, Geneva, Switzerland