1. Divisions of Endocrinology; Johns Hopkins University; Baltimore; Maryland
2. Division of Endocrinology, Diabetes and Metabolism; University of Pennsylvania; Philadelphia; Pennsylvania
3. Department of Epidemiology; Mailman School of Public Health; Columbia University; New York; New York
4. Division of General Internal Medicine; Johns Hopkins University; Baltimore; Maryland
5. Division of Geriatric Medicine; University of Michigan; Ann Arbor; Michigan