Wang, Zheng
Hang, Jin Guo
Feng, Hao
Shi, Li Li
Dong, Jing Jian
Shen, Bin
Luo, Ting
Cai, Ren Mei
Shen, Ling Jie
Kido, Teruhiko
Sun, Xian Liang
Funding for this research was provided by:
Zhejiang Province Public Welfare Technology Application Research Project (no. LGF18H260008)
Article History
Received: 2 December 2018
Accepted: 2 May 2019
First Online: 18 May 2019
Compliance with ethical standards
: Written informed consent was obtained from all of the mothers. The study design was approved by the institutional ethics board for epidemiologic studies at Jiaxing University.
: The authors declare that they have no competing interests.