1. Department of Intensive Care of Newborns and Small Children, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
2. Department of Paediatrics and Adolescent Medicine, Rigshospitalet Copenhagen University Hospital Copenhagen Denmark
3. Research Unit for Nursing and Health, Faculty of Health University of Aarhus Aarhus Denmark
4. Department of Paediatrics and Adolescent Medicine & Gynaecology and Obstetrics Copenhagen University Hospital, Amager and Hvidovre Copenhagen Denmark
5. School of Nursing and Midwifery, Faculty of Health University of Plymouth Plymouth UK
6. Institute of Clinical Medicine, Copenhagen University Copenhagen Denmark