1. Graduate Institute of Life Sciences, National Defense Medical Center, Taipei 114, Taiwan
2. Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan
3. School of Pharmacy, National Defense Medical Center, Taipei 114, Taiwan
4. Department of Biochemistry, National Defense Medical Center, Taipei 114, Taiwan
5. Department of Biotechnology, Asia University, Taichung, Taiwan
6. China Medical University Hospital, China Medical University, Taichung 402, Taiwan