1. Otolaryngology - Head and Neck Surgery, Madigan Army Medical Center, Tacoma, Washington
2. Otolaryngology and Facial Plastic Surgery Associates, Fort Worth, Texas
3. Department of Otolaryngology - Head and Neck Surgery, Virginia Commonwealth University Hospital, Richmond, Virginia
4. Department of Otolaryngology - Head and Neck Surgery, Loma Linda University Medical Center, Loma Linda, California