Zhang, Jing
Xia, Hong
Chen, Haixia
Yao, Chenxi
Feng, Lizhen
Song, Xueru
Bai, Xiaohong
Article History
Received: 1 February 2019
Accepted: 4 October 2019
First Online: 15 November 2019
Compliance with ethical standards
: Ethical approval was obtained from the Scientific and Ethical Committee of Tianjin Medical University for the experimental protocol (IRB2017-155-01). A detailed patient consent form was signed for each embryo sample used in this study.
: The authors declare that they have no conflict of interest.