1. Thyroid Unit, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
2. Department of Endocrinology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
3. Rotterdam Thyroid Center and Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands.
4. Department of Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
5. Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.