Wang, Chen-ran
Li, Xia-yun
Zhang, Lin
Wu, Lin-man
Tan, Ling
Yuan, Fei
Guo, Yao
Williams, Sarah
Xu, Tao
Funding for this research was provided by:
Save the Children Beijing Office
Article History
Received: 6 March 2020
Accepted: 16 November 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: This study was approved by the Ethical Review Committee of National Center for Women and Children Health, Chinese Center for Disease Control and Prevention (record number: FY2017–004). All eligible mothers enrolled in this study signed a consent form.
: Not applicable.
: The authors declare that they have no competing interests.