1. Division of Neonatology Hospital for Sick Children Toronto Ontario Canada
2. Neonatal Unit Department of Paediatrics Complexo Hospitalario Universitario A Coruña Institute for Biomedical Research of A Coruña A Coruña Spain
3. Neonatology Department Complexo Hospitalario Universitario de Santiago de Compostela Health Research Institute of Santiago de Compostela Santiago de Compostela A Coruña Spain
4. Red Samid Maternal and Child Health and Development Research Network Carlos III Health Institute Madrid Spain
5. Centro de Investigación Biomédica en Red de Enfermedades Raras Carlos III Health Institute Madrid Spain
6. Division of Neonatology Complejo Hospitalario Universitario Insular Materno‐Infantil Las Palmas de Gran Canaria Spain
7. Division of Neonatology Hospital Clínico San Carlos Instituto de Investigación Sanitaria del Hospital Clínico San Carlos Madrid Spain
8. Division of Preventive Medicine Hospital Clínico San Carlos Instituto de Investigación Sanitaria del Hospital Clínico San Carlos Madrid Spain
9. Neonatal Unit Department of Pediatrics Complejo Hospitalario de Navarra – Hospital Virgen del Camino Pamplona Spain
10. Neonatal Unit Department of Paediatrics Hospital Infanta Cristina Parla Spain
11. Neonatal Unit Complejo Asistencial de Salamanca Salamanca Spain
12. Neonatology Department Hospital Universitari i Politècnic la Fe Health Research Institute La Fe Valencia Spain
13. Neonatology Department Hospital Universitario La Paz, Hospital La Paz Institute for Health Research Madrid Spain