1. Prehospital Center, Region Zealand, Næstved
2. Department of Clinical Medicine, University of Copenhagen
3. Department of Neonatal and Paediatric Intensive Care, Copenhagen University Hospital, Rigshospitalet, Copenhagen
4. Department of Anaesthesiology and Intensive care Medicine, Copenhagen University Hospital, Herlev
5. Paediatric Pulmonary Service, Department of Paediatrics and Adolescent Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen
6. Department of Anesthesiology and Intensive Care Medicine, Holbæk hospital, Region Zealand
7. Prehospital Research Unit, Department of Anaesthesiology and Intensive Care, Odense University Hospital, Odense
8. Department of Anaesthesia and Trauma Centre, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen
9. Danish Air Ambulance
10. Faculty of Health, Aarhus University, Aarhus, Denmark