1. Department of Neurosurgery, General Hospital of Central Theater Command of Chinese People's Liberation Army, Wuhan, Hubei, China
2. Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, China
3. Department of Neurosurgery, Beidaihe Rehabilitation and Recuperation Center of Chinese People's Liberation Army, Qinhuangdao, China