1. Department of Neurology, Second Hospital of Shanxi Medical University, Shanxi Medical University, Taiyuan, China.
2. Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China.
3. Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
4. Basic Medical College of Shanxi Medical University, Taiyuan, China.