1. Walter Reed National Military Medical Center, Department of Pediatrics, Division of Neonatology, Bethesda, USA
2. Uniformed Services University of Health Sciences, Department of Pediatrics, Bethesda, USA
3. 779th Medical Operations Squadron, Maryland, USA
4. University of Washington, School of Medicine, Department of Pediatrics, Division of Pediatric Critical Care Medicine, Seattle, USA
5. Tripler Army Medical Center, Department of Pediatrics, Hawaii, USA