1. Head and Neck Institute, Cleveland Clinic, Cleveland, Ohio, USA
2. School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
3. College of Wooster, Wooster, Ohio, USA
4. Department of Otolaryngology–Head and Neck Surgery, The Ohio State University, Columbus, Ohio, USA
5. Department of Otolaryngology–Head and Neck Surgery, Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
6. Johns Hopkins School of Medicine, Baltimore, Maryland, USA
7. University of Auckland, Auckland, New Zealand
8. Department of Otolaryngology–Head and Neck Surgery, Michigan Medicine, Ann Arbor, Michigan, USA
9. Washington University School of Medicine, St Louis, Missouri, USA