1. Department of Health, Long‐Term Care and Pensions, SOCIUM Research Center on Inequality and Social Policy University of Bremen Bremen Germany
2. Department of Philosophy, Politics and Economics Witten/Herdecke University Witten Germany
3. Department of Neurology Kiel University Kiel Germany
4. Institute of Medical Informatics and Statistics Kiel University Kiel Germany
5. Kiel University Kiel Germany