Na, Ding
Cong, Ma
Zhang-Xin, Wen
Rong, Chen
Qin-Yi, Wang
Yang-Na, Ou
Zhi-Feng, Sheng
Funding for this research was provided by:
Hunan Provincial Innovation Foundation For Postgraduate (CX20210372)
Fundamental Research Funds for the Central Universities of Central South University (512191022)
2021 Postgraduate Education Reform Project of Central South University (512190112)
National Natural Science Foundation of China (81870622)
Changsha Municipal Natural Science Foundation (kq2014251)
Bethune Charitable Foundation (G-X-2019-1107-3)
Scientific Research Project of Hunan Provincial Health Commission (202112070631)
Article History
Received: 18 November 2021
Accepted: 19 April 2022
First Online: 1 May 2022
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study was approved by the institutional review board of the Second Xiangya Hospital of Central South University. The reference number of the ethics committee was K010. Informed consent was waived due to the nature of the retrospective study.
: Not applicable.
: The authors declare that they have no competing interests.