1. Division of Pediatric Otolaryngology Texas Children's Hospital Houston Texas U.S.A.
2. Department of Otolaryngology‐Head and Neck Surgery Baylor College of Medicine Houston Texas U.S.A.
3. Baylor College of Medicine Houston Texas U.S.A.
4. Department of Pathology Texas Children's Hospital Houston Texas U.S.A.
5. Department of Pathology and Immunology Baylor College of Medicine Houston Texas U.S.A.