Dong, Di
Jiang, Wei-Xi
Long, Qian
Huang, Fei
Zhang, Hui
Chen, Jia-Ying
Xiang, Li
Li, Qiang
Tang, Sheng-Lan
Lucas, Henry
Funding for this research was provided by:
Bill and Melinda Gates Foundation (51914)
Article History
Received: 16 October 2018
Accepted: 28 May 2019
First Online: 11 June 2019
Ethics approval and consent to participate
: Ethical approval of the study was issued by the Institutional Review Board of Chinese Center for Disease Control and Prevention. Consent form was obtained before individual data collection and could be provided upon request.
: Consent form was obtained before individual data collection and could be provided upon request.
: All authors declare that they have no competing interests.