1. Grup de Recerca Infancia i Entorn (GRIE), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
2. Biosanitary Research Institute, Valencian International University (VIU), 46002 Valencia, Spain
3. Institut de Recerca Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain
4. BCNatal, Barcelona Center for Maternal-Fetal and Neonatal Medicine, Hospital Sant Joan de Déu and Hospital Clínic, Universitat de Barcelona, 08950 Barcelona, Spain
5. Department of Neonatology, Hospital Clínic-Maternitat, ICGON, IDIBAPS, BCNatal, 08028 Barcelona, Spain
6. Department of Pediatric Surgery, Hospital Universitario La Paz, 28046 Madrid, Spain