1. Saint Camille Hospital, Ouagadougou, Burkina Faso
2. Neonatal Intensive Care Unit, Health Department of Women and Children, Poliambulanza Foundation Hospital, Brescia, Italy
3. Neonatal Care Unit, Hospital of Macerata, Macerata, Italy
4. Neonatal Intensive Care Unit, Institute for Maternal and Child Health, IRCCS ‘Burlo Garofolo’, Trieste, Italy
5. WHO Collaborating Centre, Institute for Maternal and Child Health, IRCCS ‘Burlo Garofolo’, Trieste, Italy
6. Chiesi USA Inc, Cary, NC, USA
7. Independent Statistician, Solagna, Italy
8. Hillingdon Hospitals NHS Foundation Trust, Uxbridge, UK
9. Chiesi Foundation, Parma, Italy