1. Division of Otolaryngology, Children's National Medical Center, The George Washington University Medical Center, Washington, DC
2. Department of Otolaryngology, Washington University School of Medicine, St. Louis, MO
3. St. John's Hospital and Clinics, Springfield, MO, and University of Missouri
4. Department of Otolaryngology, Virginia Mason Medical Center, Seattle, WA
5. American Academy of Otolaryngology–Head and Neck Surgery, Alexandria, VA
6. Department of Otolaryngology and Communication Diseases, Children's Hospital Boston, and Harvard Medical School, Boston, MA