1. Department of General-, Visceral-, Thoracic-, Transplant- and Pediatric Surgery, UKSH University Hospital of Schleswig-Holstein Kiel Campus, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
2. Department of Pediatric Surgery, Ostschweizer Children’s Hospital, Claudiusstrasse 6, 9006 St. Gallen, Switzerland
3. Department of Anesthesia and Intensive Care Medicine, UKSH University Hospital of Schleswig-Holstein Kiel Campus, Arnold-Heller-Strasse 3, 24105 Kiel, Germany
4. Department of Anesthesia and Intensive Care Medicine, Ev. Amalie Sieveking Hospital, Haselkamp 33, 22359 Hamburg, Germany
5. Department of Paediatric Surgery and Urology, Southampton Children’s Hospital, University Hospital Southampton, Southampton SO16 6YD, UK
6. Kurt-Semm-Center for Minimally Invasive and Robotic Surgery, UKSH University Hospital of Schleswig-Holstein Kiel Campus, Arnold-Heller-Strasse 3, 24105 Kiel, Germany