1University of Cincinnati College of Medicine, Department of Pediatrics, Cincinnati, Ohio.
2Cincinnati Children's Hospital Medical Center, Perinatal Institute, Division of Neonatology and Pulmonary Biology, Cincinnati, Ohio.
3University of Cincinnati, Department of Mathematical Sciences, Division of Statistics and Data Science, Cincinnati, Ohio.
4Cincinnati Children's Hospital Medical Center, Division of Biostatistics and Epidemiology, Cincinnati, Ohio.
5Cradle Cincinnati, Cincinnati Children's Hospital Medical Center, Perinatal Institute, Cincinnati, Ohio.
6University of Cincinnati College of Medicine, Department of Obstetrics and Gynecology, Cincinnati, Ohio.