1. Department of CSIE, National Cheng Kung University, Tainan 701, Taiwan
2. The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung 824, Taiwan
3. Department of Chinese Medicine, E-DA Hospital, Kaohsiung 824, Taiwan
4. Graduate Institute of Acupuncture Science, China Medical University, Taichung 404, Taiwan
5. Department of Acupuncture, China Medical University Hospital, Taichung 404, Taiwan
6. Department of Biomedical Engineering, I-Shou University, Kaohsiung 824, Taiwan