Funding for this research was provided by:
Chinese Hospital Association (CHA-2012-XSPX-0629-1)
Article History
Received: 10 April 2020
Accepted: 13 November 2021
First Online: 4 December 2021
Declarations
:
: This study was approved by the Ethics Committee of Xiangya Hospital Central South University (NO 201,404,063). The Ethics Committee waived the need for written informed consent from the participants, and the data used in this study was anonymised before its use.
: Not applicable.
: The authors declare that they have no competing interests.