1. Department of Otolaryngology–Head and Neck Surgery Johns Hopkins University Baltimore Maryland USA
2. Department of Otolaryngology–Head and Neck Surgery West Virginia University Morgantown West Virginia USA
3. Department of Otolaryngology–Head and Neck Surgery University of California San Francisco San Francisco California USA
4. Department of Allergy and Immunology Emory University Atlanta Georgia USA
5. Department of Otolaryngology–Head and Neck Surgery Eastern Virginia Medical School Norfolk Virginia USA
6. Department of Otolaryngology–Head and Neck Surgery University of Manitoba Winnipeg Manitoba Canada
7. Department of Pathology & Laboratory Medicine Emory University Atlanta Georgia USA
8. Department of Otolaryngology–Head and Neck Surgery Emory University Atlanta Georgia USA
9. Department of Otolaryngology–Head and Neck Surgery Thomas Jefferson University Philadelphia Pennsylvania USA
10. Department of Otolaryngology Louisiana State University (LSU) Health Shreveport Shreveport Louisiana USA
11. Department of Respiratory Sciences University of Leicester Leicester UK
12. Department of Otorhinolaryngology–Head and Neck Surgery McGovern Medical School of the University of Texas Health Science Center at Houston Houston Texas USA