1. Hertie Institute for Clinical Brain Research; Department of Neurodegeneration, Center of Neurology; University of Tuebingen; Tuebingen Germany
2. German Center for Neurodegenerative Diseases (DZNE); Tuebingen Germany
3. Laboratory of Clinical Pharmacology and Therapeutics and Instituto de Medicina Molecular; Faculty of Medicine; University of Lisbon; Lisbon Portugal
4. Radboud University Nijmegen Medical Centre; Donders Institute for Brain, Cognition and Behaviour; Department of Neurology and Parkinson Centre Nijmegen; Nijmegen The Netherlands