1. Research Group Healthy Ageing, Allied Health Care and Nursing; Hanze University of Applied Sciences; Groningen The Netherlands
2. Department of Rehabilitation Medicine; University of Groningen, University Medical Center Groningen; Groningen The Netherlands
3. Faculty of Medicine and Pharmacy; Vrije Universiteit Brussel; Brussels Belgium
4. Department of Oral and Maxillofacial Surgery; University of Groningen, University Medical Center Groningen; Groningen The Netherlands
5. Department of General Practice and Elderly Care Medicine; University of Groningen, University Medical Center Groningen; Groningen The Netherlands
6. Department of Health Psychology Research; University of Groningen, University Medical Center Groningen; Groningen The Netherlands