1. General Internal Medicine University Hospital of Bern, University of Bern Bern Switzerland
2. Graduate School for Health Sciences University of Bern Bern Switzerland
3. School of Health Sciences, HES‐SO Valais–Wallis University of Applied Sciences and Arts Western Switzerland Sion Switzerland
4. Service of Old Age Psychiatry Lausanne University Hospital and University of Lausanne Prilly Switzerland
5. Swiss Centre of Expertise in the Social Sciences (FORS), Faculty of Social and Political Sciences University of Lausanne Lausanne Switzerland
6. Department of General Internal Medicine Cantonal Hospital of Baden Baden Switzerland
7. Institute of Primary Health Care (BIHAM), University of Bern Bern Switzerland