1. The second department of Neurology, Qingdao Central Hospital,
University of Health and Rehabilitation Sciences, Qingdao, Shandong Province 266042, China.
2. Department of Human Anatomy, Histology and Embryology, School of Basic Medicine,
Qingdao University, Qingdao, Shandong Province 266071, China.
3. Department of Neurology,
The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province 266000, China.
4. School of Clinical Medicine,
Weifang Medical University, Weifang, Shandong Province 261053, China.
5. Department of Medicine,
Qingdao University, Qingdao, Shandong Province 266071, China.