Funding for this research was provided by:
Guangdong Medical Research Foundation (A2020067)
Received: 7 April 2020
Accepted: 25 September 2020
First Online: 10 November 2020
Ethics approval and consent to participate
: This is a retrospective clinical study. All of the clinical data we used in the paper were from inpatients in Guangdong Sanjiu Brain Hospital. This study was approved by Guangdong Sanjiu Brain Hospital Ethics Committee.