1. Department of Global Public Health, Karolinska Institutet, Stockholm, Sweden
2. Faculty of Social Sciences, Tampere University, Tampere, Finland
3. Department of Public Health, Copenhagen University, Copenhagen, Denmark
4. Finnish Institute for Health and Welfare, Helsinki, Finland
5. Gerontology Research Center (GEREC), Tampere, Finland
6. Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
7. Centre of Geriatrics, Tampere University Hospital, Tampere, Finland
8. Ageing Research Center, Stockholm Sweden