1. Department of Anaesthesia and Intensive Care at Astrid Lindgren Children's Hospital at Karolinska University Hospital; Karolinska Institutet; Stockholm Sweden
2. Department of Physiology and Pharmacology; Karolinska Institutet; Stockholm Sweden
3. Department of Anaesthesia and Intensive Care; Karolinska University Hospital Huddinge; Stockholm Sweden
4. Centre For Surgical Sciences; Karolinska Institutet; Stockholm Sweden