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Ohls RK, Ehrenkranz RA, Das A, Dusick AM, Yolton K, Romano E, Delaney-Black V, Papile LA, Simon NP, Steichen JJ, Lee KG; National Institute of Child Health and Human Development Neonatal Research Network.Ohls RK, et al.Pediatrics. 2004 Nov;114(5):1287-91. doi: 10.1542/peds.2003-1129-L.Pediatrics. 2004.PMID: 15520109Clinical Trial.