Funding for this research was provided by:
National Natural Science Foundation of China (81901543, 81901545, 81971333, 82001495)
the Fundamental Research Funds for the Central Universities (WK9110000063)
State Key Laboratory of Reproductive Medicine (SKLRM-K201904)
Natural Science Foundation of Anhui Provincial of China (1908085QH315)
the National Key Research and Development Project (2019YFA0802600)
Received: 7 February 2021
Accepted: 25 May 2021
First Online: 21 June 2021
: This study was approved by The First Affiliated Hospital of USTC Ethical Committee. Written informed consent was obtained from all participants.
: Not applicable.
: The authors declare no conflict of interest.