Yi-Chien Yang1, Chon-Haw Tsai2. 1. Department of Neurology (Yang, Tsai), China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Neural and Cognitive Sciences (Tsai), China Medical University, Taichung, Taiwan. 2. Department of Neurology (Yang, Tsai), China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Neural and Cognitive Sciences (Tsai), China Medical University, Taichung, Taiwan windymovement@yahoo.com.tw.