Hsu, Wenchan
Liu, Lifen
Chen, Xin
Zhang, Ying
Zhu, Weipei
Funding for this research was provided by:
the Key talents for maternal and child health of Jiangsu Province (FRC201714)
National Natural Science Foundation of China (SDFEYGJ1706)
Article History
Received: 12 January 2019
Accepted: 19 June 2019
First Online: 29 June 2019
Ethics approval and consent to participate
: All the protocols in this study were approved by the Ethics Committee of the Second Affiliated Hospital of Soochow hospital.
: Not applicable.
: The authors declare that they have no competing interests.