1. Mental Health Promotion Unit, National Institute for Health and Welfare, Vaasa, Finland
2. Faculty of Health and Social Sciences, Northumbria University, Newcastle Upon Tyne, UK
3. NISAL, Linköping University, Sweden
4. Nordic School of Public Health, NHV, Gothenburg, Sweden
5. Department of Community Medicine and Rehabilitation, Division of Geriatric Medicine, Umeå University, Sweden