1. Department of Anaesthesiology & Intensive Care—Paediatric SectionOdense University Hospital Odense Denmark
2. Department of Clinical Research—Anaesthesiology University of Southern Denmark Odense Denmark
3. Division of Emergencies and Critical Care Medicine Oslo University Hospital Rikshospitalet Oslo Norway
4. Department of Anaesthesiology, Intensive Care and Pain Medicine, Division of Anaesthesiology, Eye and Ear Hospital University of Helsinki and Helsinki University Hospital Helsinki Finland
5. Department of Anaesthesiology and Intensive Care Medicine, Queen Silvia Children Hospital Sahlgrenska University Hospital Gothenburg Sweden
6. Institute of Clinical Sciences, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden