1. Department of Neurology; The First Hospital of Harbin; Harbin; China
2. Institute of Neurology; Guangdong Medical College; Zhanjiang; China
3. Department of Neurology; The First Affiliated Hospital of Harbin Medical University; Harbin; China
4. Department of Chronic Disease; Shenzhen Nanshan Center for Chronic Disease Control; Shenzhen; China
5. Guangdong Key Laboratory of Age-Related Cardiac and Cerebral Diseases; Affiliated Hospital of Guangdong Medical College; Zhanjiang; China