Funding for this research was provided by:
Grant of Health Promotion against HIV/AIDS & STI (4800-4842-302-210)
HIV/AIDS seroprevalence in Korea (2006-N51001-00)
Received: 23 February 2019
Accepted: 29 October 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: The Institutional Review Board of the Korea Centers for Disease Control and Prevention approved the conduct of this study (no. 2016-07-06-PE-A) and waived the requirement for a written consent.
: Not applicable.
: The authors declare that they have no competing interests.