1. Department of Otolaryngology–Head and Neck Surgery Houston Methodist Hospital Houston USA
2. Department of Otolaryngology–Head & Neck Surgery University of Michigan Medical School Ann Arbor USA
3. Department of Otorhinolaryngology All India Institute of Medical Sciences Jodhpur Jodhpur USA
4. Department of Head and Neck Surgery David Geffen School of Medicine at UCLA Los Angeles USA
5. University of North Carolina School of Medicine Department of Otolaryngology–Head and Neck Surgery
6. Michigan Ear Institute Farmington Hills USA
7. Department of Otolaryngology–Head and Neck Surgery Wayne State University Detroit USA
8. University of Washington Department of Otolaryngology–Head and Neck Surgery
9. Stanford University Department of Otolaryngology–Head and Neck Surgery
10. King Saud University Department of Otolaryngology–Head & Neck Surgery
11. Louisiana State University Health Sciences Center School of Medicine Department of Otolaryngology–Head and Neck Surgery
12. Columbia University–Harlem Hospital Department of Surgery
13. Department of Surgery NYU Long Island School of Medicine New York City USA
14. Department of Otorhinolaryngology–Head and Neck Surgery Hospital University of Pennsylvania Philadelphia USA
15. Department of Otolaryngology–Head & Neck Surgery Park Nicollet Specialty Care Bloomington USA
16. Department of Otolaryngology and Neurosurgery University of Miami Miller School of Medicine Miami USA
17. Department of Otolaryngology–Head and Neck Surgery University of Arizona Tucson USA
18. Department of Otolaryngology–Head and Neck Surgery King Abdulaziz University Jeddah Saudi Arabia
19. Division of Otolaryngology–Head and Neck Surgery University of California San Diego La Jolla USA
20. Department of Otolaryngology–Head & Neck Surgery Harvard Medical School/Mass Eye and Ear Boston USA
21. Department of Otolaryngology–Head and Neck Surgery Case Western Reserve University and University Hospitals Cleveland USA