1. Pediatric Residency Program, Brooke Army Medical Center , Fort Sam Houston, TX 78234, USA
2. Pediatric Subspecialty Clinic, Brooke Army Medical Center , Fort Sam Houston, TX 78234, USA
3. Department of Pediatric Pulmonology, Tripler Army Medical Center , Honolulu, HI 96859, USA
4. Department of Pediatric Cardiology, Brooke Army Medical Center , Fort Sam Houston, TX 78234, USA
5. Department of Pediatric Gastroenterology, Brooke Army Medical Center , Fort Sam Houston, TX 78234, USA