1. Department of Neurology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
2. Department of Parasitology, Chung Shan Medical University, Taichung 40201, Taiwan
3. Clinical Laboratory, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
4. Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 40227, Taiwan