1. MedStar Health Research Institute, Washington, DC.
2. Division of Endocrinology, MedStar Washington Hospital Center, Washington, DC.
3. Division of Nuclear Medicine, MedStar Washington Hospital Center, Washington, DC.
4. Department of Radiology, George Washington University.
5. Division of Endocrinology, Diabetes and Metabolism, Wexner Medical Center, The Ohio State University, Columbus, Ohio.
6. Biophysics, Mayo Clinic and Medical School, Rochester, Minnesota.
7. ThyCa: Thyroid Cancer Survivors Association, Inc., Olney, Maryland.