1. Department of Neurology; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou China
2. Department of Neurology; the Sixth Affiliated Hospital; Sun Yat-sen University; Guangzhou China
3. Department of Emergency; Sun Yat-Sen Memorial Hospital; Sun Yat-Sen University; Guangzhou China
4. Medical School; Shenzhen University; Shenzhen China