1 Department of Neurology, Weifang People's Hospital, Weifang, China.
2 Second Department of Neurology, Tengzhou Central People's Hospital, Tengzhou, China.
3 Drug Supply Department, The Second Hospital of Shandong University, Jinan, China.
4 Department of Neurology, The First Affiliated Hospital of Shandong First Medical University, Shandong Qianfoshan Hospital, Jinan, China - zhaozeyuweifang@163.com.