1. Department of Neurointensive Care Unit and The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
2. Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
3. Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, California, USA.
4. Department of Neurosurgery, and Loma Linda University School of Medicine, Loma Linda, California, USA.
5. Department of Anesthesiology, Loma Linda University School of Medicine, Loma Linda, California, USA.