1. Department of Life and Nanopharmaceutical Science, Kyung Hee University, Seoul 130-701, Republic of Korea
2. Kyung Hee East-West Pharmaceutical Research Institute, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea
3. Pharmaceutical science, Kyung Hee University, Seoul 130-701, Republic of Korea
4. Oriental Pharmaceutical Science, Kyung Hee University, Seoul 130-701, Republic of Korea