1. Division of Neonatology, Department of Pediatrics, Drexel University, St. Christopher's Hospital for Children, Philadelphia, Pennsylvania
2. Division of Neonatology, Department of Pediatrics, Medical College of Wisconsin, Children's Wisconsin, Milwaukee, Wisconsin
3. Division of Neonatology, Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
4. Division of Neonatology, Department of Pediatrics, University of Toronto, The Hospital for Sick Children, Toronto, Ontario, Canada
5. Division of Neonatology, Department of Pediatrics, Wake Forest University, Brenner Children's Wake Forest Baptist Health, Winston-Salem, North Carolina
6. Division of Neonatology, Department of Pediatrics, University of Washington Medical School, Seattle Children's Hospital, Seattle, Washington
7. Division of Neonatology, Department of Pediatrics, University of Southern California, Children's Hospital Los Angeles, Los Angeles, California
8. Division of Neonatology, Department of Pediatrics, University of Cincinnati, Cincinnati Children's, Cincinnati, Ohio
9. Division of Neonatology, Department of Pediatrics, University of Wisconsin, American Family Children's Hospital, Madison, Wisconsin
10. Department of Pediatrics, Division of Neonatology, University of Nebraska, Children's Hospital & Medical Center, Omaha, Nebraska
11. Division of Neonatology, Department of Pediatrics, Children's Healthcare of Atlanta and Emory University School of Medicine, Atlanta, Georgia
12. Division of Neonatology, Department of Pediatrics, University of Connecticut, Connecticut Childrens, Harford, Connecticut
13. Division of Neonatology, Department of Pediatrics, George Washington University, Children's National Medical Center, Washington, District of Columbia
14. Division of Neonatology, Department of Pediatrics, Wayne State University, Children's Hospital of Michigan, Detroit, Michigan
15. Division of Neonatology, Department of Pediatrics, Washington University School of Medicine, St. Louis Children's Hospital, St. Louis, Missouri
16. Division of Neonatology, Department of Pediatrics, Northwestern University, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois