1. Department of Internal Medicine, Division of Metabolism, Endocrinology & Diabetes University of Michigan Ann Arbor MI USA
2. Center for Public Health Genomics University of Virginia Charlottesville VA USA
3. Departments of Public Health Sciences, and Biochemistry and Molecular Genetics University of Virginia Charlottesville VA USA
4. Endocrinology & Metabolism Section, Medicine Service Veterans Affairs Medical Center Ann Arbor MI USA