1. Department of Surgical Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
2. Nordsim: Center for Skills Training and Simulation, Aalborg University Hospital, Aalborg, Denmark
3. Emergency Department, Aarhus University Hospital, Aarhus, Denmark
4. Department of Surgical Gastroenterology, North Denmark Regional Hospital, Hjørring, Denmark
5. Department of Cardiology and Clinical Investigation, Hillerod and Department of Cardiology, Nordsjaellands Hospital, Aalborg University Hospital, Aalborg, Denmark