1. Department of Internal Medicine, University of Florida (E.L.M.), Gainesville, Florida 32608-4653
2. Center for Health Outcome Policy Evaluation Studies (E.L.M.), Ohio State University, Columbus, Ohio 43210-1228
3. Department of Internal Medicine and Radiology, Divisions of Endocrinology, Diabetes, and Metabolism, and Nuclear Medicine (R.T.K.), Ohio State University, Columbus, Ohio 43210-1228