1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
2. Department of Family Medicine, Daegu Catholic University School of Medicine, Daegu, Korea
3. Division of Cardiology, Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
4. Division of Endocrinology and Metabolism, Department of Internal Medicine, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
5. Department of Endocrinology and Metabolism, College of Medicine, Kyung Hee University, Seoul, Korea
6. Department of Family Medicine, Konyang University College of Medicine, Daejeon, Korea
7. Department of Family Medicine, Gachon University College of Medicine, Incheon, Korea
8. Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
9. Institute for Evidence-based Medicine, Cochrane Korea, Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
10. Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
11. Division of Geriatrics, Department of Internal Medicine, Seoul National University School of Medicine, Seoul, Korea