1. Karolinska Institutet, Stockholm, Sweden
2. FOU nu, Research and Development Center for the Elderly, Region Stockholm, Järfälla, Sweden
3. Karolinska University Hospital, Stockholm, Sweden
4. Stockholms Sjukhem. Stockholm, Sweden
5. Danderyd Hospital, Danderyd, Sweden
6. Karolinska Institutet & Stockholm University, Stockholm, Sweden
7. Centre for Epidemiology and Community Medicine, Region Stockholm, Stockholm, Sweden
8. Stockholm University, Stockholm, Sweden