1. Division of Thyroid and Parathyroid Surgery, Department of Laryngology and Otology, Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston Massachusetts
2. Division of Head and Neck Endocrine Surgery, Department of Otolaryngology-Head and Neck Surgery; Johns Hopkins University School of Medicine; Baltimore Maryland U.S.A.
3. Division of Endocrinology, Department of Medicine, Brigham and Women's Hospital; Harvard Medical School; Boston Massachusetts
4. Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital; Harvard Medical School; Boston Massachusetts