Article History
Received: 19 October 2020
Accepted: 29 May 2021
First Online: 8 June 2021
Declarations
:
: Informed consent forms have been signed by all patients before the study. The research protocol based on the ethical principles of medical research involving human subjects in the Helsinki Declaration has been approved by the Ethics Committee of The Second Affiliated Hospital of Chongqing Medical University.
: Not applicable.
: The authors report no competing interests in this work.