1. Department of Internal Medicine, Healthcare Research Institute, Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea
2. Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
3. Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
4. Laboratory of Epigenetics, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
5. Department of Pathology, Seoul National University College of Medicine, Seoul, Korea