1. Faculty of Health and Occupational Studies Department of Caring Sciences University of Gävle Gävle Sweden
2. Aging Research Center (ARC) Department of Neurobiology Care Sciences and Society (NVS) Karolinska Institutet and Stockholm University Stockholm Sweden
3. Department of Public Health and Caring Sciences Uppsala University Uppsala Sweden
4. Nursing Department Medicine and Health College Lishui University Lishui China