1. Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
2. Graduate School for Health Sciences, University of Bern, Bern, Switzerland
3. Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
4. Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
5. Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, the Netherlands
6. Service of Endocrinology, Diabetology, Nutrition, and Therapeutic Education, Geneva University Hospitals, Geneva, Switzerland
7. School of Public Health, University College Cork, Cork, Ireland
8. Institute of Cardiovascular Medicine, University of Glasgow, Glasgow, Scotland
9. University Hospital of Old Age Psychiatry, University of Bern, Bern, Switzerland
10. Departments of Medicine and Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
11. Department of Medicine, Erasmus Medical Center, Rotterdam, the Netherland
12. Department of Public Health and Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark