Zheng, Hui
Zhang, Guomin
Wang, Fuzhen
Yin, Zundong
Miao, Ning
Sun, Xiaojin
Liang, Xiaofeng
Cui, Fuqiang https://orcid.org/0000-0001-9029-0432
Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2012ZX10002001, 2017ZX10105015)
Article History
Received: 25 September 2018
Accepted: 29 May 2019
First Online: 8 July 2019
Ethics approval and consent to participate
: The ethics approval for this study was signed by the China CDC Ethical Review Committee (Ethics certificate:201339), and the study was conducted following the ethics regulations. Cohort participants were informed of the study purpose and their right to keep information confidential. Before the investigation, an informed consent form was signed by all participants.
: Not applicable
: The authors declare that they have no competing interests.