Funding for this research was provided by:
National Natural Science Foundation of China (81773097)
Received: 11 May 2020
Accepted: 1 July 2020
First Online: 9 July 2020
Ethics approval and consent to participate
: The study protocol is approved by West China Hospital of Sichuan University Clinical Trial Ethics Committee (HX-IRB-AF-14-V3.0). Changes to the protocol will be communicated via protocol amendment by the study principal investigators. Written informed consent will be obtained from all participants.
: Not Applicable.
: The authors declare that they have no competing interests.