1. National Research Institute of Chinese Medicine, Taipei 112, Taiwan, Republic of China
2. Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei 110, Taiwan, Republic of China
3. Chinese Medicine Research and Development Center and Department of Pharmacy, China Medical University and Hospital, Taichung, 404, Taiwan, R. O. C.
4. Graduate Institute of Integrated Medicine, China Medical University, Taichung 404, Taiwan, Republic of China