1. Department of Pediatrics, Women & Infants Hospital, Brown University, Providence, Rhode Island
2. Department of Pediatrics, Wayne State University, Detroit, Michigan
3. Department of Pediatrics, McGovern Medical School at the University of Texas Health Science Center at Houston
4. Social, Statistical, and Environmental Sciences Unit, RTI International, Research Triangle Park, North Carolina
5. Department of Pediatrics, University of Iowa, Iowa City
6. Department of Pediatrics, Duke University, Durham, North Carolina
7. Perinatal Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
8. Division of Neonatology, University of Alabama at Birmingham
9. Social, Statistical, and Environmental Sciences Unit, RTI International, Rockville, Maryland
10. Department of Pediatrics, University of Pennsylvania, Philadelphia
11. Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut
12. Department of Pediatrics, Division of Neonatal and Developmental Medicine, Stanford University School of Medicine, Palo Alto, California
13. Lucile Packard Children’s Hospital, Palo Alto, California
14. Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas
15. Emory University School of Medicine, Department of Pediatrics, Children’s Healthcare of Atlanta, Atlanta, Georgia
16. Department of Pediatrics, Indiana University School of Medicine, Indianapolis
17. Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
18. Department of Pediatrics, Division of Neonatology, University of Utah School of Medicine, Salt Lake City
19. University of New Mexico Health Sciences Center, Albuquerque
20. Division of Newborn Medicine, Department of Pediatrics, Floating Hospital for Children, Tufts Medical Center, Boston, Massachusetts
21. University of Rochester School of Medicine and Dentistry, Rochester, New York
22. Department of Pediatrics, University of California, Los Angeles
23. Department of Pediatrics, Children’s Mercy Hospital, Kansas City, Missouri
24. University of Missouri Kansas City School of Medicine, Kansas City
25. Department of Pediatrics, Nationwide Children’s Hospital, Columbus, Ohio
26. Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland