Southern Medical University - Dermatology Hospital, Zhuhai Center for Disease Control and Prevention, University of North Carolina (UNC) at Chapel Hill - Project-China, Zhuhai Center for Disease Control and Prevention, Zhuhai Xutong Voluntary Services Center, London School of Hygiene & Tropical Medicine, Zhuhai Center for Disease Control and Prevention, University of Minnesota, Duke University, Zhuhai Center for Disease Control and Prevention, University of North Carolina (UNC) at Chapel Hill, University of North Carolina (UNC) at Chapel Hill - Project-China, Emory University, London School of Hygiene & Tropical Medicine, Eastern Virginia Medical School, University of North Carolina (UNC) at Chapel Hill - Project-China, Xi'an Jiaotong-Liverpool University (XJTLU), Zhuhai Center for Disease Control and Prevention and University of North Carolina Project-China

Zhuhai Center for Disease Control and Prevention, University of North Carolina (UNC) at Chapel Hill - Project-China, University of North Carolina (UNC) at Chapel Hill - Project-China, University of North Carolina (UNC) at Chapel Hill - Project-China, Zhuhai Xutong Voluntary Services Center, Alfred Health - Melbourne Sexual Health Centre, Southern Medical University, University of North Carolina (UNC) at Chapel Hill - Department of Health Policy and Management, University of North Carolina (UNC) at Chapel Hill - Project-China, Zhuhai Center for Disease Control and Prevention, Zhuhai Center for Disease Control and Prevention, University of North Carolina (UNC) at Chapel Hill - Project-China, University of North Carolina (UNC) at Chapel Hill - Project-China, University of North Carolina (UNC) at Chapel Hill - Project-China, University of North Carolina (UNC) at Chapel Hill - Project-China, University of North Carolina (UNC) at Chapel Hill - Project-China, Peking University - Clinical Research Academy, Zhuhai Center for Disease Control and Prevention, Zhuhai Center for Disease Control and Prevention, University of North Carolina at Chapel Hill - Department of Biostatistics, Dermatology Hospital of Southern Medical University, Dermatology Hospital of Southern Medical University, Zhuhai Center for Disease Control and Prevention and University of North Carolina Project-China