1. Department of Internal Medicine (T.E., G.D.H.), Ann Arbor, Michigan 48106
2. University of Michigan Medical School (A.R.W.), Ann Arbor, Michigan 48109
3. Division of Metabolism, Endocrinology, and Diabetes, Department of Radiation Oncology (A.S., S.J.), Ann Arbor, Michigan 48106
4. Division of Endocrine Surgery (B.S.M.), Section of General Surgery, University of Michigan Hospital and Health Systems, Ann Arbor, Michigan 48106