1. Ultrasound Section, Division of Surgery, Department of Gastroenterology; Herlev Hospital, and Copenhagen Academy for Medical Education and Simulation, University of Copenhagen; Herlev Denmark
2. Center for Perioperative Optimization, Department of Surgery; Herlev Hospital, and Copenhagen Academy for Medical Education and Simulation, University of Copenhagen; Herlev Denmark
3. Department of Surgical Gastroenterology and Transplantation; Rigshospitalet, University of Copenhagen; Copenhagen Denmark
4. Interventional Ultrasound Section, Department of Radiology; Institute of Care Igea; Milan Italy
5. University of Wisconsin Hospital and Clinics; Madison Wisconsin USA
6. Ultrasound Section, Division of Surgery, Department of Gastroenterology; Herlev Hospital, University of Copenhagen; Herlev Denmark