Funding for this research was provided by:
All Japan Labor Welfare Foundation
Received: 19 April 2020
Accepted: 22 November 2020
First Online: 10 December 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Assisted Reproductive Medicine in Shanghai JiAi Genetics & IVF Institute (JIAI E2020–02). All patients consented to participate in the research, and oral/written informed consent was obtained from each patient.
: We have obtained consent to publish from each patient.
: The authors declare that they have no competing interests.