1. Department of Otolaryngology–Head and Neck Surgery, SUNY Downstate Medical Center, Brooklyn, New York
2. Department of Otolaryngology–Head and Neck Surgery, Virginia Commonwealth University Medical Center, Richmond, Virginia
3. Otolaryngology and Facial Plastic Surgery Associates, Fort Worth, Texas
4. Department of Otolaryngology–Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, Texas