1. University of Witwatersrand Medical School, Chris Hani Baragwanath Academic Hospital, Directorate of Trauma & Burns, Johannesburg, Republic of South Africa
2. Department of Surgery, Military Hospital Berlin, Academic Teaching Hospital of the Charité, Berlin, Germany
3. Department of Anesthesiology and Pain Medicine, Bern University Hospital Inselspital, Bern, Switzerland
4. 4th Clinic of Surgery, University Hospital Attikon, Athens, Greece
5. Institute of Applied Simulation, Zurich University of Applied Sciences (ZHAW), Waedenswil, Zurich, Switzerland
6. Department of General and Visceral Surgery, Coloproctology, Helios St. Josefs-Hospital Bochum-Linden, Bochum, Germany
7. Department of General, Visceral, Vascular and Pediatric Surgery, Saarland University, Homburg/Saar, Germany
8. Department of Surgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
9. Department of Surgery, Catholic Clinics Oldenburger Muensterland GmbH, Saint Mary's Hospital Vechta, Teaching Hospital of Hannover University, Vechta, Germany