1. Department of Neurology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou 510623, China
2. Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA 92354, USA
3. Cerebrovascular Center, Henan Provincial People’s Hospital, Zhengzhou University, Zhengzhou 450003, China
4. Department of Anesthesiology, Neurosurgery and Neurology, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA