1. School of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University, Taichung 404, Taiwan
2. Department of Pharmacology, China Medical University, Taichung 404, Taiwan
3. Department of Pharmacy, Yongkang Veterans Hospital, Tainan 710, Taiwan
4. Department of Optometry, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 356, Taiwan
5. Department of Chemistry, National Taiwan University, Taipei 106, Taiwan
6. Agricultural Biotechnology Research Center, Academic Sinica, Taipei 115, Taiwan
7. Tsuzuki Institute for Traditional Medicine, China Medical University, Taichung 404, Taiwan