1. Department of Anesthesiology Erasmus University Medical Center Rotterdam The Netherlands
2. Department of Anesthesiology Rijnstate Hospital Velp The Netherlands
3. Department of Epidemiology and Biostatistics Vrije Universiteit Medical Centre Amsterdam Amsterdam The Netherlands
4. Department of Anesthesiology Critical Care and Multidisciplinary Pain Center Ziekenhuis Oost‐Limburg Belgium
5. Department of Pain and Palliative Pain Medicine Radboud University Medical Center Nijmegen Nijmegen The Netherlands
6. Department of Anesthesiology and Pain Medicine Maastricht University Medical Center Maastricht The Netherlands