Funding for this research was provided by:
Foundation for the National Institutes of Health (R01 AI114310)
The Project for Key Medicine Discipline Construction of Guangzhou Muniscipality (2017-2019-07)
UNC-South China STD Research Training Centre/United States (D43 TW009532)
Fogarty Health Fellows Program (R25 TW00934005S2)
Text and Data Mining valid from 2019-03-05
Received: 13 June 2017
Accepted: 9 January 2019
First Online: 5 March 2019
Change Date: 26 March 2019
Change Type: Correction
Change Details: Following publication of the original article , the author reported his family name has been marked as the first name. His given name is M. Kumi and his family name is Smith.
Ethics approval and consent to participate
: The study protocol was approved by the institutional review boards of the Guangdong Provincial Center for Skin Diseases and Sexually Transmitted Infection Control, the University of North Carolina at Chapel Hill, and the University of California, San Francisco. Consent of study participants was obtained by written (Guangzhou sentinel surveillance survey) or electronic (nationwide online MSM survey) signature.
: The authors declare that there are no financial and non-financial competing interests.
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