1. German Centre of Gerontology , Berlin , Germany
2. Department of Gerontology, University of Haifa , Haifa , Israel
3. Department of Research, Education and Innovation, Region Västra Götaland, South Älvsborg Hospital , Borås , Sweden
4. Research, Development, Education and Innovation, Primary Health Care, Region Västra Götaland , Gothenburg , Sweden
5. Department of Psychology, University of Gothenburg , Gothenburg , Sweden