1. Department of AnesthesiologyCatharina Hospital Eindhoven The Netherlands
2. Anesthesiology Pain Center, Department of AnesthesiologyUniversity Medical Center Groningen, University of Groningen Groningen The Netherlands
3. Department of AnesthesiologyRadboud University Medical Center Nijmegen The Netherlands
4. Department of AnesthesiologyGZA Ziekenhuizen Campus Sint‐Augustinus Wilrijk Belgium
5. Department of Functional AnatomyUniversity Medical Center Utrecht Utrecht The Netherlands