1 Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD. Electronic address: higginsr@mail.nih.gov.
2 Department of Pediatrics, Cincinnati Children's Hospital Medical Center and University of Cincinnati, Cincinnati, OH.
3 Pregnancy and Perinatology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD.
4 Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL.
5 Department of Pediatrics, University of Maryland Baltimore, Baltimore, MD.
6 Department of Medicine, Division of Allergy, Pulmonology and Critical Care Medicine, Vanderbilt University, Nashville, TN.
7 Department of Pediatrics, Medical University of South Carolina, Charleston, SC.
8 Divisions of Neonatology and Developmental Biology Professor of Pediatrics David Geffen School of Medicine at UCLA Mattel Children's Hospital UCLA, Los Angeles, CA.
9 Children's National Health System, Department of Pediatrics, Washington, DC.
10 Department of Pediatrics, Cardiovascular Research Center and Children's Research Institute, Medical College of Wisconsin, Milwaukee, WI.
11 Section of Pediatric Pulmonology, Allergy and Sleep Medicine, Department of Pediatrics, Riley Hospital for Children, Indiana University School of Medicine, Indianapolis, IN.
12 Department of Pediatrics, Children's Hospital of Eastern Ontario and Children's Hospital of Ontario Research Institute (CHEORI), Ontario, Canada; Sinclair Centre for Regenerative Medicine, Ottawa Hospital Research Institute (OHRI), Ontario, Canada; Department of Cellular and Molecular Biology, University of Ottawa, Ontario, Canada.
13 Department of Pediatrics, University of California, San Francisco, San Francisco, CA; Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA.
14 Eudowood Division of Pediatric Respiratory Sciences, Johns Hopkins Medical Institutions, Baltimore, MD.
15 Department of Neonatology and Division of Translational Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
16 Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
17 Department of Pediatrics, University of California at San Diego, San Diego, CA.