1. Department of Anaesthesia and Intensive Care Aarhus University Hospital Aarhus Denmark
2. Department of Paediatric Anaesthesia and Intensive Care Oslo University Hospital Rikshospitalet Norway
3. Department of Paediatric Anaesthesia and Intensive Care Drottning Silvias University Hospital Gothenburg Sweden
4. Department of Anaesthesia and Intensive Care Tampere University Hospital Tampere Finland
5. Department of Paediatric Anaesthesia and Intensive Care Skåne University Hospital Lund Sweden
6. Department of Anaesthesia and Intensive Care St. Olavs Hospital Trondheim University Hospital Trondheim Norway