1. Department of Geriatric Medicine University Duisburg‐Essen EssenGermany
2. Care Policy Evaluation Centre (CPEC) London School of Economics and Political Science (LSE) London UK
3. Department of Neurology UKSH Christian‐Albrechts University KielGermany
4. Grünenthal GmbH AachenGermany
5. Department of Neurology Philipps‐University Marburg MarburgGermany
6. Jung & Parkinson, Die Selbsthilfe e.V. Bad Camberg Germany