Affiliation: | (1) Department of Internal Medicine Liver Research Institute, Seoul National University College of Medicine, 28 Yongon-Dong, Chongno-Gu, Seoul, 110-744, Korea;(2) Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Ulsan, Korea;(3) Department of Microbiology, Hanyang University College of Medicine, Seoul, Korea; |