AUniversity of North Carolina at Chapel Hill Project-China, Guangzhou, China.

BDivision of Infectious Diseases, School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.

CZhitong Guangzhou LGBT Center, Guangzhou, China.

DNational University Singapore Saw Swee Hock School of Public Health, Singapore.

EDepartment of Medicine, Division of Infectious Disease, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

FCincinnati Children’s Hospital Medical Center, Anderson Center for Health Systems Excellence, Cincinnati, OH, USA.

GDepartment of Social Medicine and Health Education, School of Public Health, Nanjing Medical University, Nanjing, China.