Funding for this research was provided by:
National Natural Science Foundation of China (81771806)
National Natural Science Foundation of China (61936013)
Received: 19 June 2020
Accepted: 15 February 2021
First Online: 9 March 2021
Ethics approval and consent to participate
: This research was approved by the ethics committee of Beijing Youan Hospital. All participants provided written informed consent prior to enrolment.
: Not Applicable.
: HJL, one of the corresponding author of this article, is a member of the editorial board (Associate Editor) of BMC Neurology. The other corresponding author and authors have no conflicts of interest to declare.