Jiang, Wei-Xi
Long, Qian
Lucas, Henry
Dong, Di
Chen, Jia-Ying
Xiang, Li
Li, Qiang
Huang, Fei
Wang, Hong
Elbers, Chris
Cobelens, Frank
Tang, Sheng-Lan
Funding for this research was provided by:
Bill and Melinda Gates Foundation (#23386)
Article History
Received: 8 September 2018
Accepted: 8 March 2019
First Online: 24 March 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.
: The authors declare that they have no competing interests.