Xu, Xiaofeng
Liu, Tao
Wu, Jun
Wang, Yijin
Hong, Ying
Zhou, Huaijun http://orcid.org/0000-0002-6994-2747
Funding for this research was provided by:
Natural Science Foundation of Jiangsu Province (BK20151096)
Key Projects of National Health and Family Planning Commission of Nanjing City
Jiangsu Provincial Science and Technology Department
Article History
Received: 31 October 2018
Accepted: 28 December 2018
First Online: 17 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.