1. Cardiovascular Center, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
2. Lee Gil Ya Cancer and Diabetes Institute, Gachon University of Medicine and Science, Incheon, Korea.
3. Department of Family Medicine, University of Ulsan College of Medicine, Ulsan, Korea.
4. Department of Food and Nutrition, Sungshin Women's University, Seoul, Korea.
5. Division of Cardiology, Cardiovascular Genome Center, Yonsei University College of Medicine, Seoul, Korea.