1. Department of Otolaryngology–Head and Neck Surgery West Virginia University Morgantown West Virginia USA
2. Department of Otorhinolaryngology McGovern Medical School of the University of Texas Health Science at Houston Houston Texas USA
3. Division of Allergy and Immunology Johns Hopkins University School of Medicine Baltimore Maryland USA
4. Department of Otolaryngology–Head and Neck Surgery Johns Hopkins University School of Medicine Baltimore Maryland USA
5. Department of Otolaryngology–Head and Neck Surgery Houston Methodist Hospital Houston Texas USA
6. Department of Otolaryngology–Head and Neck Surgery Cleveland Clinic Lerner College of Medicine at Case Western Reserve University Cleveland Ohio USA
7. Department of Otolaryngology University of Central Florida Lake Mary Florida USA
8. Sidney Kimmel Medical College Thomas Jefferson University Philadelphia Pennsylvania USA
9. Department of Otolaryngology–Head and Neck Surgery University of Illinois at Chicago Illinois USA
10. Department of Otolaryngology Eastern Virginia Medical School Norfolk Virginia USA
11. Division of Adult and Pediatric Allergy and Immunology Department of Pediatrics West Virginia University Morgantown West Virginia USA
12. Division of Allergy Immunology Northwestern University Feinberg School of Medicine Chicago Illinois USA
13. Department of Otolaryngology–Head and Neck Surgery Thomas Jefferson University Philadelphia Pennsylvania USA
14. Division of Otolaryngology University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA