1. Korea Bioactive Natural Material
Bank, College of Pharmacy, Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju 501-759, Republic of Korea
2. Division of Biological Science
and Technology, Yonsei University, Wonju
220-100, Republic of Korea
3. Division of Life Science, Korea Basic Science Institute, Gwahangno 169-148, Yuseong-gu,
Daejeon 305-333, Republic of Korea