1. Department of Nursing Umeå University Umeå Sweden
2. Lovisenberg Diaconal University College Oslo Norway
3. Department of Nursing Science Faculty of Medicine Institute of Health and Society Oslo University Oslo Norway
4. Institute of Nursing and Health Promotion Oslo Metropolitan University Oslo Norway
5. Department of Epidemiology and Global Health Umeå University Umeå Sweden
6. Department of Health and Rehabilitation Centre for Ageing and Health – AgeCap Institute of Neuroscience and Physiology Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
7. School of Nursing and Midwifery La Trobe University Melbourne Victoria Australia
8. Faculty of Medicine Institute of Health and Society Oslo University Oslo Norway