1. Department of Internal Medicine; Seoul National University Bundang Hospital; Seoungnam South Korea
2. Department of Internal Medicine and Institute of Liver Research; Seoul National University College of Medicine; Seoul South Korea
3. Department of Pathology; Seoul National University Bundang Hospital; Seoungnam South Korea
4. Division of Statistics in Medical Research Collaborating Center; Seoul National University Bundang Hospital; Seoungnam South Korea