1. Thyroid Section, Division of Endocrinology, Hypertension and Diabetes, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
2. Department of Radiology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
3. Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
4. Department of Neurology, Massachusetts General Hospital, Harvard Medical School.
5. Harvard/MIT Health Sciences and Technology–Beth Israel Deaconess Medical Center, in collaboration with Pfizer, Inc.