1. Department of Paediatric Anaesthesia & Intensive Care; Karolinska University Hospital; Stockholm Sweden
2. Department of Physiology & Pharmacology; Section of Anaesthesiology & Intensive Care; Karolinska Institutet; Stockholm Sweden
3. Faculty of Medicine; Department of Anaesthesia and Intensive Care; Children Hospital Bechir Hamza; University of Tunis El Manar; Tunis Tunisia
4. Faculty of Medicine; Department of Anaesthesia and Intensive Care; Kassab Orthopedic Institute; University of Tunis El Manar; Tunis Tunisia
5. Department of Anaesthesia; Royal Aberdeen Children's Hospital; Aberdeen UK
6. Childhood Cancer Research Unit Q6:05; Department of Women's and Children's Health; Karolinska Institutet; Astrid Lindgren Children's Hospital; Karolinska University Hospital Solna; Stockholm Sweden