1. Department of Otolaryngology–Head and Neck Surgery Naval Hospital Camp Pendleton California USA
2. Department of Otolaryngology–Head and Neck Surgery Naval Medical Center Camp Lejeune North Carolina USA
3. Division of Pediatric Otolaryngology Rady Children’s Hospital–San Diego San Diego California USA
4. Department of Otolaryngology–Head and Neck Surgery University of California–San Diego San Diego California USA
5. Department of Otolaryngology–Head and Neck Surgery Naval Medical Center San Diego California USA