1. Department of Pediatrics, Walter Reed National Military Medical Center, Bethesda, MD, USA
2. Department of Pediatrics, Uniformed Services University of Health Sciences, Bethesda, MD, USA
3. 779th Medical Operations Squadron, Joint Base Andrews, Prince George’s County, MD, USA
4. Drexel University College of Medicine, Philadelphia, PA, USA
5. United States Air Force Medical Service, Washington, DC, USA