Funding for this research was provided by:
National Natural Science Foundation of China (81672085, 71871169, U1933120, 81372804)
the Chinese medical association of clinical medicine special funds for scientific research projects (17020400709)
the Hubei Provincial Natural Science Foundation of China (2019CFA062)
Received: 18 July 2020
Accepted: 23 May 2021
First Online: 3 June 2021
: The study was approved by the ethics committees at the Reproductive Medicine Center of Tongji Hospital, and informed consent was signed by the patients before participation.
: Not Applicable.
: The authors have declared that there is no competing interest.