University of North Carolina Project-China, National University of Singapore (NUS) - Saw Swee Hock School of Public Health, University of North Carolina Project-China, University of North Carolina Project-China, University of North Carolina Project-China, University of North Carolina (UNC) at Chapel Hill, University of North Carolina (UNC) at Chapel Hill - Institute for Global Health and Infectious Diseases, Cincinnati Children's Hospital Medical Center, Nanjing Medical University, Johns Hopkins University, University of North Carolina (UNC) at Chapel Hill, Washington University in St. Louis - Department of Internal Medicine, Yale University, University of California, Los Angeles (UCLA), Emory University, Southern Medical University - Dermatology Hospital of Southern Medical University, University of North Carolina (UNC) at Chapel Hill, Southern Medical University - Dermatology Hospital of Southern Medical University, Dongguan Sixth Hospital, The People’s Hospital of Wuchuan, Huidong Chronic Disease Station, Dermatology Hospital of Jiangmen, The No 1 People’s Hospital of Foshan, Zhuhai Doumen District Qiaoli Traditional Chinese Medicine Hospital, Zhanjiang Chronic Diseases Institute, Foshan Friend’s Care Center For AIDS Control, Zhuhai Xutong Voluntary Services Center, Dermatology Hospital of Southern Medical University, Chinese Academy of Medical Sciences & Peking Union Medical College (CAMS & PUMC) - Institute of Dermatology, Southern Medical University - Dermatology Hospital, Southern Medical University - Dermatology Hospital of Southern Medical University, Dermatology Hospital of Southern Medical University and Southern Medical University

Dermatology Hospital of Southern Medical University, London School of Hygiene & Tropical Medicine, Southern Medical University - Dermatology Hospital of Southern Medical University, Southern Medical University - Dermatology Hospital, University of Minnesota, London School of Hygiene & Tropical Medicine - Department of Clinical Research, Eastern Virginia Medical School, Jinan University, University of North Carolina (UNC) at Chapel Hill, London School of Hygiene & Tropical Medicine, Southern Medical University, Southern Medical University and Dermatology Hospital of Southern Medical University

Dermatology Hospital of Southern Medical University, Guangdong Academy of Medical Sciences - Global Health Research Center, Dermatology Hospital of Southern Medical University, Department of Psychology, University of Macau, School of Health Sciences, Oakland University, Alfred Health - Melbourne Sexual Health Centre, University of Vienna, Department of African Studies, Xinshi Hospital, Guangzhou, Dermatology Hospital of Southern Medical University and Dermatology Hospital of Southern Medical University

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