Funding for this research was provided by:
Chongqing Science and Technology Commission (cstc2017jcyjAX0281, cstc2016shms-ztzx10002)
Received: 23 September 2021
Accepted: 25 October 2021
First Online: 17 November 2021
: The ethics committee of the First Affiliated Hospital of Chongqing Medical University approved this retrospective study, and the need for informed consent was waived owing to the retrospective nature of the study.
: Not applicable.
: The authors declare that they have no competing interests.