Funding for this research was provided by:
National Key Research and Development Program (2018YFC1002105)
Key Laboratory of Reproductive Dysfunction Diseases and Fertility Remodelling of Liaoning Province (2018225107)
Key Research and Development Program of Liaoning Province (2018225093)
Article History
Received: 14 November 2018
Revised: 26 December 2018
Accepted: 24 January 2019
First Online: 15 February 2019
Consent for publication
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.