Postgraduate Medical School, General Hospital of People's Liberation Army, Beijing 100853, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;
Department of Othopedics, Spine Surgery Center, 306th Hospital of People's Liberation Army, Beijing 100101, China;