[1] Skåne University Hospital,Lund
[2] Karolinska Institutet,Malmö NIDCAP Training and Research Center, Department of Neonatology
[3] Karolinska University Hospital,Department of Women’s and Children’s Health
[4] Uppsala University,Department of Neonatology, Astrid Lindgren’s Children Hospital
[5] Uppsala University Hospital,Department of Women’s and Children’s Health
[6] University of Turku,Department of Neonatology
[7] Turku University Hospital and University of Turku,Faculty of Medicine