1. Department of Otolaryngology–Head and Neck Surgery, University of Kansas Medical Center, Kansas City
2. Department of Otolaryngology, Nebraska Methodist Health System, Omaha
3. Department of Otolaryngology–Head and Neck Surgery, University of Iowa, Iowa City
4. Department of Otolaryngology–Head and Neck Surgery, University of Missouri, Columbia
5. Department of Otolaryngology–Head and Neck Surgery, Vanderbilt University, Nashville, Tennessee
6. Department of Otolaryngology–Head and Neck Surgery, University of Minnesota, Minneapolis
7. Department of Otolaryngology–Head and Neck Surgery, Columbia University Irving Medical Center, New York, New York
8. Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Harvard University, Boston, Massachusetts