Huang, Xue-Yong
Du, Yan-Hua
Wang, Hai-Feng
You, Ai-Guo
Li, Yi
Su, Jia
Nie, Yi-Fei
Ma, Hong-Xia
Xu, Bian-Li https://orcid.org/0000-0003-4966-3457
Funding for this research was provided by:
National Natural Science Foundation of China (81573204, 81773500)
Henan medical science and technology program (2018010029, 2018020510)
Article History
Received: 27 February 2019
Accepted: 10 June 2019
First Online: 24 June 2019
Ethics approval and consent to participate
: The research was approved by the Ethical Committee of Henan Center for Disease Control and Prevention, and the committee’s reference number is (2016-KY-002-02). Not applicable for consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.