1. Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
2. Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, South Korea
3. Department of Internal Medicine, Ewha Womans University Medical Center, Ewha Womans University College of Medicine, Seoul, South Korea
4. Department of Internal Medicine, Healthcare System Gangnam Center Seoul National University Hospital, Seoul, South Korea
5. Medical Research Collaborating Center, Seoul National University Hospital, Seoul, South Korea
6. College of Pharmacy, Chungnam National University, Daejeon, South Korea