1. Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan, Shandong, People’s Republic of China
2. Department of Neurosurgery, Liaocheng People’s Hospital and Liaocheng Clinical School of Taishan Medical University, Liaocheng, Shandong, People’s Republic of China
3. School of Biomedical Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia