1. San Antonio Uniformed Services Education Consortium, Department of Pediatrics, Brooke Army Medical Center, JBSA-Fort Sam Houston, TX 78234, USA
2. 59th Medical Wing, JBSA-Lackland, TX 78236, USA
3. Department of Pediatrics, Tripler Army Medical Center, Honolulu, HI 96859, USA
4. Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
5. US Army Institute of Surgical Research, JBSA-Fort Sam Houston, TX 78234, USA