1. Stroke Center and Department of Neurology, Linkou Medical Center, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Taoyuan, Taiwan
2. Clinical Informatics and Medical Statistics Research Center, Chang Gung University, Taiwan
3. Department of Neurology, Landseed Hospital, Taiwan
4. Department of Neurology, National Taiwan University Hospital Hsin-chu Branch, Hsinchu, Taiwan