Wang, Yuanyuan
Chen, Lian
Wu, Tianchen
Shi, Huifeng
Li, Qin
Jiang, Hai
Zheng, Danni
Wang, Xiaoli
Wei, Yuan
Zhao, Yangyu
Qiao, Jie
Funding for this research was provided by:
Chinese Academy of Engineering (2020-KYGG-01-06)
National Natural Science Foundation of China (72042013)
Peking University Health Science Center (BMU2020HKYZX001)
Article History
Received: 15 August 2020
Accepted: 23 October 2020
First Online: 4 November 2020
Ethics approval and consent to participate
: All process of this study was reviewed and approved by the Peking University Third Hospital Medical Science Research Ethics Committee (No. IRB00006761-M2020127). All pregnant women gave their informed consent before participation in this study.
: All participants provided “consent for publication” as part of their informed consent to participate in this study.
: The authors declare that they have no competing interests.