1. Research Unit for the Department of Anaesthesiology & Intensive Care, Odense University Hospital, University of Southern Denmark, Odense, Denmark
2. Odense Patient Data Explorative Network (OPEN), Odense University Hospital and Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
3. H.C. Andersen Children's Hospital, Odense University Hospital; Department of Clinical Research, University of Southern Denmark, Odense, Denmark
4. Department of Anaesthesiology and Intensive Care, Hospital Sønderjylland, University of Southern Denmark, Odense, Denmark
5. Research Unit for Surgery, Odense University Hospital, University of Southern Denmark, Odense, Denmark
6. Research Unit for Surgery, and Centre of Excellence in Gastrointestinal Diseases and Malformations in Infancy and Childhood (GAIN), Odense University Hospital, University of Southern Denmark, Odense, Denmark