1. Radboud University Medical Center, Donders Institute for Brain, Cognition and BehaviourDepartment of Neurology, Centre of Expertise for Parkinson & Movement Disorders Nijmegen the Netherlands
2. Groenhuysen Organisation Roosendaal the Netherlands
3. Radboud University Medical CenterRadboud Institute for Health Sciences Nijmegen the Netherlands
4. Interdisziplinäres Zentrum für Palliativmedizin und Klinik für Neurologie Universität München‐Klinikum Großhadern Munich Germany
5. Institute of Nursing Science and Practice Salzburg Austria
6. Department of Geriatric MedicineUniversity Hospital Essen Essen Germany
7. University of Lisbon, Lisbon School of Medicine (FMUL), Laboratory of Clinical Pharmacology and Therapeutics, Lisbon, Portugal; and University of LisbonLisbon School of Medicine (FMUL), Instituto de Medicina Molecular Lisbon Portugal
8. University of LisbonLisbon School of Medicine (FMUL), Instituto de Medicina Molecular Lisbon Portugal
9. Department of NeurosciencesService of Neurology, Hospital Santa Maria Lisbon Portugal
10. Service de Neurologie CHU de Bordeaux 33000 Bordeaux France
11. Univ. de Bordeaux, Institut des Maladies Neurodégénératives Bordeaux France
12. Department of MedicineUniversity of Otago Christchurch New Zealand
13. New Zealand Brain Research Institute Christchurch New Zealand
14. Department of Neurology, Department of Clinical SciencesLund University Lund Sweden
15. Coordinating Centre for Clinical TrialsPhilipps University Marburg Marburg Germany
16. Radboud University Medical CenterDepartment of Primary and Community Care Nijmegen The Netherlands
17. Joachim en Anna, Center for Specialized Geriatric Care Nijmegen The Netherlands
18. University College London, Queen Square Institute of Neurology, University College London London United Kingdom