1. Thyroid Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School (H.M.T., T.B., D.S., P.R.L.), Boston, Massachusetts 02115
2. Tupper Research Institute and Department of Medicine, Division of Endocrinology, Diabetes, Metabolism, and Molecular Medicine (G.L., R.M.L.), Boston, Massachusetts 02111
3. Department of Neuroscience, Tufts University School of Medicine (R.M.L.), Boston, Massachusetts 02111