1. Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
2. Department of Respiratory, Liaocheng People’s Hospital, Liaocheng, Shandong, China (mainland)
3. Liaocheng People’s Hospital and Clinical School of Taishan Medical University, Liaocheng, Shandong, China (mainland)
4. Department of Pathology, Liaocheng People’s Hospital, Liaocheng, Shandong, China (mainland)
5. Department of Neurosurgery, Liaocheng People’s Hospital, Liaocheng, Shandong, China (mainland)
6. Department of Neurosurgery, Liaocheng People’s Hospital, 聊城, China (mainland)