1. Department of Anesthesiology and Pain Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands
2. Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands
3. Department of Neurology, Maastricht University Medical Centre, Maastricht, the Netherlands
4. Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, the Netherlands
5. CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, the Netherlands
6. Department of Anesthesiology, Pain and Palliative Care, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
7. Department of Anesthesiology, Free University of Amsterdam, Amsterdam, the Netherlands