1. Department of Neurosurgery, The Forth Affiliated Hospital of Nantong Medical College, Yancheng, Jiangsu, China;
2. Department of Ear-Nose-Throat, The Second People's Hospital of Huai’An, Jiangsu, China;
3. Department of Ear-Nose-Throat, The Second People's Hospital of Taizhou, Taizhou, Jiangsu, China;
4. Department of Neurosurgery, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing, Jiangsu, China