1. Department of Pharmacy, Chungbuk National University, Chungbuk 362-763, Republic of Korea
2. Korea Research Institute of Bioscience and Biotechnology, Ochang 363-883, Republic of Korea
3. College of Pharmacy, Dongguk University, Goyang 410-773, Republic of Korea
4. College of Pharmacy, Korea University, Sejong 339-700, Republic of Korea
5. College
of Pharmacy, Kyungsung University, Busan 608-736, Republic of Korea