Affiliation: | 1. Department of Oriental Pharmaceutical Sciences, College of Pharmacy, Kyung Hee University, 1 Hoegi-dong, Dongdaemoon-gu, Seoul 130-701, South Korea;2. College of Pharmacy, CBITRC, Chungbuk National University, Chongju 361-763, South Korea;3. Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 110-460, South Korea |