1. Geriatric Medicine; Department of Internal Medicine and Clinical Nutrition; Institute of Medicine; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
2. Department of Endocrinology; Internal Medicine; Sahlgrenska University Hospital; Gothenburg and Mölndal Sweden
3. Department of Molecular and Clinical Medicine; Wallenberg Laboratory; Institute of Medicine; Sahlgrenska Academy; University of Gothenburg; Gothenburg Sweden
4. Novo Nordisk Foundation Center for Basic Metabolic Research; Section for Metabolic Receptology and Enteroendocrinology; Faculty of Health Sciences; University of Copenhagen; Copenhagen Denmark
5. Geriatric Medicine Clinic; Sahlgrenska University Hospital; Gothenburg and Mölndal Sweden