Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2016YFC1000501)
National Natural Science Foundation of China (81773441, 31371523)
Ministry of Education of the People's Republic of China (20130001110064)
Text and Data Mining valid from 2019-05-07
Received: 13 January 2019
Accepted: 26 April 2019
First Online: 7 May 2019
Ethics approval and consent to participate
: For human subjects, the study protocol was approved by the Institutional Review Board of Peking University, and written informed consent was obtained from all participating women.All mice were maintained at the laboratory animal center at Peking University Health Science Center using standard techniques in accordance with protocols approved by the Institutional Animal Care and Use Committee of Peking University (certificate no. LA2013–36).
: Not applicable.
: The authors declare that they have no competing interests.
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