1. Department of Neurosurgery Yancheng City No. 1 People’s Hospital, The Fourth Affiliated Hospital of Nantong University Yancheng P. R. China
2. Department of Ear‐Nose‐Throat The Second People’s Hospital of Huai’an, Huai’an Affiliated Hospital of Xuzhou Medical University Huai’an P. R. China
3. The First School of Clinical Medicine, Nanjing Medical University Nanjing Jiangsu P. R. China
4. Department of Oncology Yancheng City No. 1 People’s Hospital, The Fourth Affiliated Hospital of Nantong University Yancheng P. R. China
5. Department of Neurosurgery Jiangning Hospital Affiliated with Nanjing Medical University Nanjing P. R. China
6. Department of Neurosurgery Yancheng Third People’s Hospital Yancheng P. R. China