1. Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston
2. Harvard Medical School, Boston, Massachusetts
3. Department of Otolaryngology–Head and Neck Surgery, The Johns Hopkins University, Baltimore, Maryland
4. Department of Otolaryngology–Head and Neck Surgery, Kansas University Medical Center, Kansas City
5. Department of Otolaryngology–Head and Neck Surgery, Washington University School of Medicine, St Louis, Missouri
6. Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston
7. Department of Otolaryngology–Head and Neck Surgery, Louisiana State University Health Sciences Center, New Orleans
8. Department of Otolaryngology–Head and Neck Surgery, Northwestern University, Chicago, Illinois
9. Department of Otolaryngology–Head and Neck Surgery, University of Miami Miller School of Medicine, Miami, Florida