1. Stroke Center and Department of Neurology; Chang Gung Memorial Hospital; Linkou Medical Center; College of Medicine; Chang Gung University; Taoyuan Taiwan
2. Department of Neurology; Taiwan Adventist Hospital; Taipei Taiwan
3. Clinical Informatics and Medical Statistics Research Center, College of Medicine; Chang Gung University; Taoyuan Taiwan
4. Department of Neurosurgery; Chiayi Chang Gung Memorial Hospital; Chiayi Taiwan