1. Detroit, Michigan, Rochester, New York, Charleston, South Carolina, Dallas, Texas, Omaha, Nebraska, Los Angeles, California, and Alexandria, Virginia
2. The Henry Ford Hospital
3. The University of Rochester Medical Center
4. The Medical University of South Carolina
5. The University of Texas-Southwestern Medical School
6. The University of Nebraska Medical Center
7. The House Ear Institute
8. The American Academy of Otolaryngology–Head and Neck Surgery Foundation