1. University Medical Center Groningen, Department of Rehabilitation Medicine, University of Groningen, Groningen, the Netherlands; Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands; and University Medical Center Groningen, Groningen Transplant Center, University of Groningen. Hanzeplein 1, 9713 GZ Groningen, the Netherlan
2. University Medical Center Groningen, Department of Rehabilitation Medicine, University of Groningen; and University Medical Center Groningen, Center of Sports Medicine, University of Groningen
3. Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences
4. University Medical Center Groningen, Groningen Transplant Center, University of Groningen; and University Medical Center Groningen, Department of Pulmonary Diseases and Tuberculosis, University of Groningen
5. University Medical Center Groningen, Department of Rehabilitation Medicine, University of Groningen; and University Medical Center Groningen, Department of Oral and Maxillofacial Surgery, University of Groningen
6. University Medical Center Groningen, Department of Rehabilitation Medicine, University of Groningen; and Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences