1. Otolaryngology and Facial Plastic Surgery Associates, Fort Worth, Texas
2. Department of Otolaryngology Head and Neck Surgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania
3. Otolaryngology, Head and Neck Surgery, Madigan Army Medical Center, Tacoma, Washington
4. Department of Otolaryngology Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California
5. Division of Otolaryngology-Head and Neck Surgery, Metropolitan Hospital, New York, New York
6. Department of Otolaryngology-Head/Neck Surgery, University of Florida College of Medicine, Gainesville, Florida