1. Department of Anesthesiology and Intensive Care Medicine Campus Charité Mitte and Campus Virchow‐Klinikum Charité University Medicine Berlin Germany
2. St. Mark's Hospital Harrow Middlesex UK
3. Department of Anesthesia McGill University Health Centre Montreal General Hospital Montreal Quebec Canada
4. Department of Anesthesiology and Pain Therapy University Hospital Maastricht (azM) Maastricht The Netherlands
5. University of Edinburgh The Royal Infirmary Clinical Surgery Edinburgh UK
6. Department of Surgery McGill University Health Centre Montreal General Hospital Montreal Quebec Canada
7. Department of Anesthesiology Duke University Medical Center Durham North Carolina USA
8. St. Mark's Hospital/Imperial College Harrow, Middlesex/London UK
9. Department of Surgery Faculty of Medicine and Health Örebro University Örebro Sweden
10. Gastrointestinal Surgery National Institute for Health Research Nottingham Digestive Diseases Biomedical Research Unit Nottingham University Hospitals and University of Nottingham Queen's Medical Centre Nottingham UK
11. Anestesiologa y Reanimacin Hospital Clinico Lozano Blesa Universidad de Zaragoza Zaragoza Spain
12. Department of Anesthesia McGill University Health Centre Royal Victoria Hospital Montreal Quebec Canada
13. Royal Surrey County Hospital NHS Foundation Trust University of Surrey Surrey UK
14. Department of Surgery Duke University Medical Center Durham North Carolina USA
15. Department of Anaesthesiology University Hospital of North Norway Tromso Norway