Article History
Received: 18 December 2021
Accepted: 21 January 2022
First Online: 29 January 2022
Declarations
:
: This retrospective cohort study had been approved by the ethics committee of the First Affiliated Hospital of Chongqing Medical University (2019-015) before the data analysis. There was no need for informed consent in this retrospective study.
: Not applicable.
: The authors have no relevant financial or non-financial interests to disclose.