1. Epidemiology and Statistics Branch, Ministry of Health Cairo, Egypt
2. Division of Diabetes Translation, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention Atlanta, Georgia Division of Endocrinology and Metabolism, Ministry of Health Cairo, Egypt
3. Department of Internal Medicine, University of Michigan Ann Arbor, Michigan Prudential Center for Health Care Research, Ministry of Health Cairo, Egypt
4. Atlanta, Georgia Quintiles, Inc., Ministry of Health Cairo, Egypt
5. Research Triangle Park North Carolina Diabetes Institute, Ministry of Health Cairo, Egypt