1. Department of Internal Medicine, Antwerp University Hospital, Antwerp, Belgium;
2. Pain in Motion Research Group, Departments of Human Physiology and Physiotherapy, Vrije Universiteit Brussel, Brussels, Belgium, and Department of Physical Medicine and Physiotherapy, University Hospital Brussels, Brussels, Belgium;
3. Department of Scientific Coordination and Biostatistics, Antwerp University Hospital, Antwerp, Belgium;
4. Department of Internal Medicine, Antwerp University Hospital, Antwerp, Belgium;Faculty of Medicine and Health Science, University of Antwerp, Antwerp, Belgium