1. The Research Institute of Integral Chinese and Western Medicine, Chinese Medical University, 404 Taichung, Taiwan, ROC
2. Department of Anesthesia, Taichung Veterans General Hospital, 407 Taichung, Taiwan, ROC
3. Department of Medical Research and Radiology, Chinese Medical University, 404 Taichung, Taiwan, ROC
4. Department of Education and Medical Research, Taichung Veterans General Hospital, 407 Taichung, Taiwan, ROC
5. Department of Biostatistics, Chinese Medical University, 404 Taichung, Taiwan, ROC
6. Department of Neurology, Chinese Medical University Hospital, 404 Taichung, Taiwan, ROC