Xiao, Qin
Lu, Yongzhou
Chen, Min
Chen, Bo
Yang, Yuming
Cui, Daxiang
Pan, Bo
Xu, Nan
Funding for this research was provided by:
the National Natural Science Foundation of China (81201234)
the Shanghai Municipal Commission of Health and Family Planning Scientific Fund (2012134)
Article History
Received: 5 September 2017
Accepted: 27 February 2018
First Online: 7 March 2018
Competing Interests
: The authors declare that they have no competing interests.
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