Received: 29 November 2020
Accepted: 17 March 2021
First Online: 27 March 2021
: This study was approved by the Ethics Committee of the Department of Assisted Reproduction(Xiangya Hospital,Central South University,)as well as the China Registered Clinical Trial Ethics Review Committee (Ethical Review No.: CHiECRT1900028223).
: This manuscript was an original research that has not been published previously, and not under consideration for publication elsewhere, in whole or in part.
: The authors have no conflicts of interest to disclose.