Funding for this research was provided by:
national natural science foundation of china (82003197)
Received: 1 July 2021
Accepted: 22 October 2021
First Online: 30 October 2021
: This study was approved by the Institutional Review Board (IRB) of The Sixth Affiliated Hospital of Sun Yat-sen University. This is a retrospective trial from public datasets with demonstrated minimal risk and we petition BPG for waiver of ethics consent.
: We have obtained consents to publish this paper from all the participants of this study.
: The authors declared no financial conflict of interest. The authors declare that there are no competing interests.