1. Department of Neurosurgery, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China
2. Department of Surgery of Thyroid Gland and Breast, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China
3. Department of Neurology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264100, China
4. College of Basic Medicine, Binzhou Medical University, Yantai, Shandong 264000, China