1. German Center for Neurodegenerative Diseases (DZNE), Greifswald, Germany
2. Institute of General Practice and Family Medicine, Ludwig Maximilian University Hospital, Ludwig Maximilian University Munich (LMU), Munich, Germany
3. Institute for Community Medicine, University Medicine Greifswald (UMG), Greifswald, Germany
4. University of Siegen, Faculty V: School of Life Sciences, Siegen, Germany
5. Medical Faculty, Institute of Social Medicine, Occupational Health and Public Health (ISAP), University of Leipzig, Leipzig, Germany
6. Institute of General Practice, University of Kiel, Kiel, Germany
7. Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
8. Department of Clinical Pharmacology and Pharmacoepidemiology, University Hospital Heidelberg, Heidelberg, Germany
9. Institute of General Practice and Family Medicine, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
10. MHH Information Technology, Hannover Medical School, Hannover, Germany