[1] IRCSS Azienda Osped Univ Bologna, Pediat Emergency Dept, Bologna, Italy
[2] Univ Naples Federico II, Dept Translat Med Sci, Sect Pediat, Naples, Italy
[3] Univ Bologna, Dipartimento Sci Biomed & Neuromotorie, Alma Mater Studiorum, Bologna, Italy
[4] PO San Francesco Nuoro, Dept Pediat, Nuoro, Italy
[5] A Cardarelli Hosp, Dept Pediat, Campobasso, Italy
[6] Cannizzaro Emergency Hosp Catania, Pediat & Pediat Emergency Room Unit, Catania, Italy
[7] Azienda Toscana Nord Ovest, Pediat Unit, Cecina, Italy
[8] Azienda Osped Cardinale Giovanni Panico, Unita Pediat, Tricase, Italy
[9] Azienda Osped Cardinale Giovanni Panico, TIN, Tricase, Italy
[10] ASM Matera, Osped Madonna Delle Graz, Unita Operat Complessa Pediat & Neonatol, Matera, Italy
[11] San Giovanni di Dio Hosp, Neonatal Intens Care Unit, Calabria, Italy
[12] ASST Lecco, Neonatal Intens Care Unit, Lecce, Italy
[13] ASST Lecco, Paediat Dept, Lecce, Italy
[14] Univ Turin, Regina Margherita Childrens Hosp, Postgrad Sch Pediat, AOU Citta Salute & Sci, Turin, Italy
[15] Salesi Childrens Hosp, Div Neonatol, Ancona, Italy
[16] Univ G dAnnunzio, Dept Paediat, Chieti, Italy
[17] Azienda Osped Univ Santa Maria della Misericordia, Dept Pediat, Friuli Venezia Giulia, Italy
[18] Tappeiner Hosp, Pediat Unit, Merano, Trentino Alto A, Italy
[19] Asl Valle dAnsta, Valle Daosta, Italy
[20] Univ Hosp Padua, Dept Womens & Childrens Hlth, Div Pediat Infect Dis, Padua, Italy
[21] Fdn Policlin Univ A Ge Melli IRCCS, Dept Woman & Child Hlth & Publ Hlth, Rome, Italy
[22] Univ Cattolica Sacro Cuore, Dipartimento Sci Biotecnol Base Clin Intensivol &, Rome, Italy
[23] Univ Cattolica Sacro Cuore, Global Hlth Res Inst, Ist Igiene, Rome, Italy