Funding for this research was provided by:
National Natural Science Foundation of China (81273083, 91643207)
National Key R&D Program of China (2017YFC0212003)
Hubei Province Health & Family Planning Scientific Research Project (WJ2017Z001)
Text and Data Mining valid from 2019-02-06
Received: 14 August 2018
Accepted: 16 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: The study protocol was approved by the ethics committee of the Tongji Medical College, Huazhong University of Science and Technology (No. S152), and the Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital) (No. 2016003). Individual written informed consent was obtained from all participating mothers at enrollment.
: Not applicable.
: The authors declare that they have no competing interests.
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