1. Division of Thyroid and Parathyroid Surgery, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
2. Division of Surgical Oncology, Endocrine Surgical Service, Massachusetts General Hospital, Boston, Massachusetts.
3. Division of Laryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
4. Division of Otolaryngology – Head and Neck Surgery, Southern Illinois School of Medicine, Springfield, Illinois.