1. Medical School; Shenzhen University; Shenzhen; China
2. Department of Neurology; Affiliated Hospital of Guangdong Medical College; Zhanjiang; China
3. Department of Neurology; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou; China
4. Department of Neurosurgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou; China