1. Department of Neurology, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, 150086, Harbin, China
2. Department of Cardiology, Second Hospital of Heilongjiang Province, 209 Jiangdu Road, 150028, Harbin, China
3. Department of Neurology, Fourth Affiliated Hospital of Harbin Medical University, 37 Yiyuan Road, 150006, Harbin, China