Yanli Du1, Zongli Han2, Peng Hu3, Hongqi Zhang4. 1. School of Medical Technology and Nursing, Shenzhen Polytechnic, Guangdong, Shenzhen, China. 2. Department of Neurosurgery, Peking University Shenzhen Hospital, Guangdong, Shenzhen, China. 3. Department of Neurosurgery, Xuanwu Hospital Capital Medical University, Beijing, China. 4. Department of Neurosurgery, Xuanwu Hospital Capital Medical University, Beijing, China. niugenggaiety0116@163.com.