Affiliation: | (1) Research Laboratories, II-Dong Pharmaceutical Company, Kyung-Ki-Do, Chung Ang University, Kyunggido, Korea;(2) Department of Biotechnology, Chung Ang University, Kyunggido, Korea;(3) Bldg 105, IMBG, Seoul National University, Kwan-Ak-Gu, 151-742 Seoul, Korea |