1. Department of Otolaryngology‐Head and Neck Surgery Massachusetts Eye and Ear Infirmary, Harvard Medical School Boston Massachusetts U.S.A.
2. Department of Otolaryngology–Head and Neck Surgery Vanderbilt University Medical Center Nashville Tennessee U.S.A.
3. Southern New England Ear, Nose and Throat Group Middlesex Hospital Middlesex Connecticut U.S.A.
4. Department of Surgery Yale University School of Medicine New Haven Connecticut U.S.A.
5. Department of Otolaryngology‐Head and Neck Surgery University of Colorado School of Medicine Aurora Colorado U.S.A.
6. UPMC Department of Otolaryngology Head and Neck Surgery University of Pittsburgh School of Medicine Pittsburgh Pennsylvania U.S.A.
7. Department of Otolaryngology and Communication Sciences Medical College of Wisconsin Milwaukee Wisconsin U.S.A.
8. Department of Otolaryngology‐Head and Neck Surgery Thomas Jefferson University Philadelphia Pennsylvania U.S.A.
9. Department of Otorhinolaryngology, Head and Neck Surgery Technische Universität München Munich Germany
10. Department of Otolaryngology‐Head and Neck Surgery Weill Cornell Medicine/New York Presbyterian Hospital New York New York U.S.A.
11. Department of Otolaryngology‐Head and Neck Surgery Wayne State University School of Medicine Detroit Michigan U.S.A.
12. USC Caruso Department of Otolaryngology–Head and Neck Surgery Keck School of Medicine of the University of Southern California California Los Angeles U.S.A.