Xu, Xin
Chen, Zuosen
Huo, Xiyuan
Wang, Chunping
Li, Ning
Meng, Xianfeng
Wang, Qiang
Liu, Qiyong
Bi, Peng
Li, Jing http://orcid.org/0000-0002-5073-1210
Funding for this research was provided by:
Science and Technology Development Program for Medicine and Health of Shandong Province (2017WS703, 2016WS0664)
Social Science Planning Research Project of Shandong Province (18CQXJ18)
State Key Laboratory of Infectious Disease Prevention and Control Program of China (2018SKLID306)
Article History
Received: 2 May 2019
Revised: 6 June 2019
Accepted: 6 June 2019
First Online: 25 June 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.