1. Department of Neurobiology; Care Sciences and Society; Division of Nursing; Karolinska Institute; Huddinge Sweden
2. Department of Geriatric Medicine; Danderyd Hospital; Stockholm Sweden
3. School of Health; Care and Social Welfare; Division of Caring Sciences; Mälardalen University; Västerås Sweden
4. Aging Research Center (ARC); Karolinska Institute; Stockholm Sweden
5. Biobehavioral Nursing & Health Systems; School of Nursing; University of Washington; Seattle WA USA