Funding for this research was provided by:
National Natural Science Foundation of China (81870352)
Hunan Province Science and Health Union Foundation (2018JJ6135)
Key Research and Development Project of Hunan Province (2020SK2087)
Article History
Received: 12 May 2021
Accepted: 10 August 2021
First Online: 30 August 2021
Declarations
:
: The study was conducted in accordance with the Declaration of Helsinki (as revised in 2013). The study was approved by Medical Ethics Committee of the Third Xiangya Hospital of Central South University (no. 20052; date, Dec 28, 2020) and individual consent for this retrospective analysis was waived.
: Not applicable.
: The authors declare that they have no competing interests.