1. Department of Anesthesiology, Division of Pediatric Anesthesiology, Göteborg, Sweden
2. Department of Pediatrics, Göteborg, Sweden
3. Department of Pediatrics, Division for Pediatric Surgery, Sahlgrenska University Hospital, Göteborg, Sweden
4. Department of Pediatric Intensive Care, Hôpital Armand‐Trousseau, Paris, France