1. Department of Neurology; First Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
2. Affiliated Liuzhou Hospital of Southern Medical University; Guangxi China
3. Affiliated futian hospital of Guangdong medical college; Shenzheng China
4. Liuzhou Hospital of Traditional Chinese Medicine; Guangxi China
5. Pingguo County People's Hospital; Guangxi China
6. Zhongshan Ophthalmic Center; Sun Yat-Sen University; Guangzhou China
7. The Carolinas Center for Medical Excellence; Cary North Carolina USA