1. Department of Gastroenterology and Alimentary Tract Surgery Tampere University Hospital Tampere Finland
2. Faculty of Social Sciences Tampere University Tampere Finland
3. Central Hospital of Central Finland Jyväskylä Finland
4. Päijät‐Häme Central Hospital Lahti Finland
5. Centre of Geriatrics Tampere University Hospital Tampere Finland
6. Faculty of Medicine and Health Technology Tampere University Tampere Finland
7. Gerontology Research Center (GEREC) Tampere Finland