1. The Ohio State University, Columbus, OH, USA
2. ENT and Allergy Associates, Englewood, NJ, USA
3. House Ear Institute, Los Angeles, CA, USA
4. Southern New England Ear, Nose, Throat & Facial Plastic Surgery, New Haven, CT, USA
5. Boys Town National Research Hospital, Omaha, NE, USA
6. American Academy of Otolaryngology–HNS, Alexandria, VA, USA
7. Columbia University, New York, NY, USA
8. Southeastern Regional Medical Center, Lumberton, NC, USA