1. Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan
2. Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
3. Institute of Biomedical Science, National Chung Hsing University, Taichung 402, Taiwan
4. Department of Biology, National Changhua University of Education, Changhua 500, Taiwan
5. Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan
6. School of Pharmacy, China Medical University, Taichung 404, Taiwan
7. Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan
8. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
9. Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan