1 Department of Research and Education, CIRO, Horn, the Netherlands. Electronic address: carmenhouben@ciro-horn.nl.
2 Department of Research and Education, CIRO, Horn, the Netherlands; Department of Respiratory Medicine, Maastricht University Medical Centre, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht, the Netherlands.
3 Department of Family Medicine and Department of Health Services Research, Faculty of Health, Medicine and Life Sciences/CAPHRI, Maastricht University, Maastricht, the Netherlands.
4 Department of Research and Education, CIRO, Horn, the Netherlands; Department of Respiratory Medicine and the Centre of Expertise for Palliative Care, Maastricht UMC+, Maastricht, the Netherlands.