1. Neonatal Intensive Care Unit, Assistance Publique-Hôpitaux de Paris, Robert Debré Children’s Hospital, Paris, France2Université Paris Diderot, Sorbonne Paris-Cité, Inserm U1141, Paris, France
2. Neonatal Intensive Care Unit, Assistance Publique-Hôpitaux de Paris, Robert Debré Children’s Hospital, Paris, France
3. Unit of Clinical Epidemiology, Assistance Publique-Hôpitaux de Paris, Robert Debré Children’s Hospital, University Paris Diderot, Sorbonne Paris-Cité, Inserm U1123 and CIC-EC 1426, Paris, France