1. Department of General Internal Medicine; Inselspital, Bern University Hospital; University of Bern; Bern Switzerland
2. Departments of Medicine and Epidemiology & Biostatistics; University of California; San Francisco CA USA
3. Geriatric Research Education and Clinical Center; Minneapolis VA Health Care System; Minneapolis MN USA
4. Department of Medicine; University of Minnesota; Minneapolis MN USA
5. Service of Endocrinology, Diabetes and Metabolism; University Hospital of Lausanne; Lausanne Switzerland
6. Institute of Primary Health Care (BIHAM); University of Bern; Bern Switzerland
7. Centre on Aging and Mobility; University of Zurich; Zurich Switzerland
8. Department of Geriatrics; University Hospital Zurich; Zurich Switzerland
9. Department of Internal Medicine & Department of Epidemiology; Erasmus Medical Center; Rotterdam The Netherlands
10. University of Pennsylvania School of Medicine; Philadelphia PA USA
11. Department of Medicine; University of California Davis; Sacramento CA USA
12. Department of Oncology and Metabolism; University of Sheffield; Sheffield UK
13. Department of Medicine; Imperial College London; London UK
14. Department of Public Health and Primary Care & Gerontology and Geriatrics; Leiden University Medical Center; Leiden The Netherlands
15. Department of Epidemiology; Graduate School of Public Health; University of Pittsburgh; Pittsburgh PA USA