1. Department of Otolaryngology–Head & Neck Surgery, Northwestern University, Chicago, Illinois
2. Department of Otolaryngology–Head & Neck Surgery, Ochsner Health System, New Orleans, Louisiana
3. Department of Otolaryngology–Head & Neck Surgery, Oregon Health Science University, Portland
4. Department of Otolaryngology–Head & Neck Surgery, University of Alabama, Birmingham
5. Department of Otolaryngology–Head & Neck Surgery, University of Nebraska Medical Center, Omaha6Department of Otolaryngology–Head & Neck Surgery, Nebraska Methodist Hospital, Omaha
6. Department of Otolaryngology–Head & Neck Surgery, Greater Baltimore Medical Center, Baltimore, Maryland8Department of Otolaryngology–Head & Neck Surgery, Johns Hopkins Hospital, Baltimore
7. Department of Otolaryngology–Head & Neck Surgery, University of Nebraska Medical Center, Omaha
8. Department of Otolaryngology–Head & Neck Surgery, Greater Baltimore Medical Center, Baltimore, Maryland
9. Department of Otolaryngology–Head & Neck Surgery, Johns Hopkins Hospital, Baltimore