1. From the Larner College of Medicine, University of Vermont, Burlington (L.W.Y.); the Departments of Biostatistics (S.T.O., Z.H., J.Y.L.) and Pediatrics (J.N.S.), University of Arkansas for Medical Sciences, Little Rock; the University of Cincinnati College of Medicine and Perinatal Institute and the Division of Neonatology, Cincinnati Children’s Hospital Medical Center, Cincinnati (S.L.M., W.R., J.M.M.), the Department of Pediatrics, Rainbow Babies and Children’s Hospital, Case Western Reserve University...