1. Department of Women's and Children's Health Uppsala University and Uppsala University Hospital Uppsala Sweden
2. Department of Nursing Science University of Turku Turku Finland
3. Department of Clinical Sciences, Lund, Paediatrics Lund University and Skåne University Hospital Lund Sweden
4. Department of Neonatology Copenhagen University Hospital Rigshospitalet Denmark
5. Department of Women's and Children's Health Karolinska Institute and Karolinska University Hospital Stockholm Sweden
6. Paediatric Research Group, Faculty of Health Sciences UiT‐The Arctic University of Norway Tromsø Norway
7. Department of Pediatrics and Adolescence Medicine University Hospital of North Norway Tromsø Norway
8. Department of Pediatrics University of Helsinki and Helsinki University Hospital (HUH) Helsinki Finland
9. Department of Paediatrics and Adolescent Medicine Turku University, Hospital and University of Turku Turku Finland