1. Department of Nursing Science, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
2. Gerontological Nursing Division, Faculty of Nursing, Burapha University, Chon Buri, Thailand
3. Institute of Public Health and Clinical Nutrition, Department of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
4. Centre of clinical nursing development, education and research, Kuopio University Hospital, Kuopio, Finland