Funding for this research was provided by:
National Natural Science Foundation of China (81301016)
Beijing Municipal Administration of Hospitals (CN) (PX2019009)
Text and Data Mining valid from 2019-07-17
Received: 27 February 2019
Accepted: 5 July 2019
First Online: 17 July 2019
Ethics approval and consent to participate
: Our work was approved by the Ethics Committee of Beijing Chaoyang Hospital and Jinan City people’s hospital. This study was performed in accordance with the Declaration of Helsinki and all authors agreed the publish statements of BMC Neurology.
: Written informed consent was obtained from all the subjects.
: The authors declare that they have no competing interests.