Affiliation: | 1.Department of Biochemistry, College of Life Science and Biotechnology, Laboratory Animal Research Center, Yonsei University, Seoul 120-749, Korea;2.Asan Institute for Life Sciences, University of Ulsan College of Medicine, Seoul 138-736, Korea;3.College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Korea;4.Department of Chemistry, Seoul National University, Seoul 151-747, Korea |