1. Health Screening and Promotion Center, Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
2. Biostatistics, Asan Medical Center; University of Ulsan College of Medicine; Seoul Korea
3. Department of Preventive Medicine; University of Ulsan College of Medicine; Seoul Korea
4. Division of Endocrinology and Metabolism, Department of Internal Medicine; University of Ulsan College of Medicine; Seoul Korea
5. Division of Cardiology, Department of Internal Medicine; University of Ulsan College of Medicine; Seoul Korea