Zongli Han1, Yanli Du2, Hui Qi3, Wei Yin1. 1. Department of Neurosurgery, Peking University Shenzhen Hospital, 1120 Lianhua Road, Futian District, Shenzhen City, 518036, Guangdong Province, People's Republic of China. 2. School of Medical Technology and Nursing, Shenzhen Polytechnic, Shenzhen, Guangdong Province, People's Republic of China. 3. Department of Neurosurgery, Peking University Shenzhen Hospital, 1120 Lianhua Road, Futian District, Shenzhen City, 518036, Guangdong Province, People's Republic of China. publicjournal@163.com.