1 Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China.
2 Department of Respiratory Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China.
3 Department of Anatomy, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450000, Henan, PR China.
4 Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
5 Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, PR China. Electronic address: Mingcli@whu.edu.cn.
6 Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA. Electronic address: jwang79@jhmi.edu.