Funding for this research was provided by:
hospital training funding (PYJJ2019-08)
medical senior talents programme of Chongqing (2019GDRC001)
Received: 4 January 2021
Accepted: 1 February 2022
First Online: 11 February 2022
: The Institutional Review Board of the First Affiliated Hospital of Chongqing Medical University approved this study and conducted in accordance with the Declaration of Helsinki. All participants provided written informed consent before their data were stored in our hospital database.
: Not applicable.
: The authors declare that they have no competing interests.