1. Department of Health Services Research, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
2. Department of Internal Medicine, Division of Rheumatology, Maastricht University Medical Centre, and CAPHRI Research Institute, Maastricht University, Maastricht, The Netherlands
3. Department of Internal Medicine, VieCuri Medical Centre, Venlo, The Netherlands
4. Department of Internal Medicine and NUTRIM Research Institute, Maastricht University Medical Centre, Maastricht, The Netherlands
5. Faculty of Medicine, University Hasselt, Hasselt, Belgium
6. Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, The Netherlands