Funding for this research was provided by:
Beijing Municipal Administration of Hospitals “Dengfeng” Talent Training Plan (DFL20180802)
Received: 19 May 2021
Accepted: 26 July 2021
First Online: 6 September 2021
: Institutional Review Board approval was obtained. Written informed consent was waived by the Institutional Review Board.
: Not applicable.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.