1. Division of Cardiology (B.P.), University of Michigan, Ann Arbor, MI.
2. Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine (R.J.A.), University of Michigan, Ann Arbor, MI.
3. Department of Pharmacology (R.J.A.), University of Michigan, Ann Arbor, MI.
4. Endocrinology and Metabolism Section, Medicine Service, LTC Charles S. Kettles VA Medical Center, Ann Arbor, MI (R.J.A.).