Affiliation: | 1. College of Pharmacy and Medicinal Research Center (MRC), Chungbuk National University, Cheongju 362-763, Republic of Korea;2. College of Pharmacy, Korea University, Sejong 339-700, Republic of Korea;3. College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 406-779, Republic of Korea;4. Korea Ocean Res & Dev Inst, Ansan 426-44, South Korea |