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)
National Natural Science Foundation of China (81773500)
Henan medical science and technology program (2018010029)
Henan medical science and technology program (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.