1. Washington University School of Medicine in St Louis, St Louis, Missouri, USA
2. University of Virginia Health System, Charlottesville, Virginia, USA
3. SUNY Downstate Medical Center, Brooklyn, New York, USA
4. University of Chicago Medicine, Chicago, Illinois, USA
5. Rush University Medical Center, Chicago, Illinois, USA
6. Emory University School of Medicine, Atlanta, Georgia, USA
7. New York Head and Neck Institute at the Manhattan Eye, Ear and Throat Hospital, New York, New York, USA
8. Johns Hopkins School of Medicine, Baltimore, Maryland, USA
9. McGovern Medical School at the University of Texas Health Science Center, Houston, Texas, USA
10. Yale University School of Medicine, New Haven, Connecticut, USA
11. Ochsner Health System, New Orleans, Louisiana, USA
12. Boston University, Boston, Massachusetts, USA
13. Johns Hopkins University, Baltimore, Maryland, USA
14. American Academy of Otolaryngology—Head and Neck Surgery Founda-tion, Alexandria, Virginia, USA