| Affiliation: | 1. Department of Health Services Administration, School of Public Health, University of Maryland, College Park, MD;2. National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD;3. Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA;4. Division of Neonatology, The Children's Hospital of Philadelphia, Philadelphia, PA;5. Center for Perinatal and Pediatric Health Disparities Research, The Children's Hospital of Philadelphia, Philadelphia, PA |
