[1] Bambino Gesu Pediat Hosp, IRCCS, Profess Dev Nurses & Allied Hlth Profess Continui, Pza St Onofrio 4, I-00165 Rome, Italy
[2] Tor Vergata Univ Rome, Dept Biomed & Prevent, Via Montpellier 1, I-00133 Rome, Italy
[3] Bambino Gesu Pediat Hosp, IRCCS, Dept Med & Surg Neonatol, Pza St Onofrio 4, I-00165 Rome, Italy
[4] Univ Plymouth, Fac Hlth & Human Sci, Sch Nursing & Midwifery, Plymouth PL4 8AA, Devon, England
[5] Bambino Gesu Pediat Hosp, IRCCS, Epidemiol Unit, Pza St Onofrio 4, I-00165 Rome, Italy
[6] Bambino Gesu Pediat Hosp, IRCCS, Unit Legal Med, Pza St Onofrio 4, I-00165 Rome, Italy
[7] IPASVI Nursing Coll Rome, Ctr Excellence Nursing Scholarship, Viale Giulio Cesare 78, I-00192 Rome, Italy
[8] Italian NICUs FCC Study Grp, Rome, Italy