[1] Univ Texas Southwestern Med Ctr Dallas, Dept Pediat, Dallas, TX 75390 USA
[2] Fdn IRCCS Ca Granda Osped Maggiore Policlin, Neonatal Intens Care Unit, Milan, Italy
[3] Childrens Med Ctr, Dallas, TX 75235 USA
[4] Parkland Hlth & Hosp Syst, Dallas, TX 75235 USA
[5] Univ Texas Southwestern Med Ctr Dallas, Dept Otolaryngol, Dallas, TX 75390 USA
[6] Fdn Ctr Estudios Infectol, Buenos Aires, DF, Argentina
[7] Univ Milan, Dept Clin Sci & Community Hlth, Milan, Italy
[8] Ohio State Univ, Coll Med, Nationwide Childrens Hosp,Div Neonatol, Abigail Wexner Res Inst,Ctr Perinatal Res,Pediat, Columbus, OH 43210 USA
[9] Ohio State Univ, Coll Med, Nationwide Childrens Hosp,Div Div Pediat Infect D, Abigail Wexner Res Inst,Ctr Perinatal Res,Pediat, Columbus, OH 43210 USA