1. Department of Neurology, Henan Provincial People's Hospital of Zhengzhou University, Zhengzhou, China.
2. Department of Pharmacology, Zhengzhou Maternal and Child Health Hospital, Zhengzhou, China.
3. Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
4. Department of Radiology, Henan Provincial People's Hospital of Zhengzhou University, Zhengzhou, China.