HIV prevalence and related risk factors among male sex workers in Shenzhen, China: results from a time–location sampling survey
Wen-De Cai, Jin Zhao, Jin-Kou Zhao, H F Raymond, Yu-Ji Feng, Jie Liu, Willi McFarland, Yong-Xia Gan, Zheng-Rong Yang, Yan Zhang, Jing-Guang Tan, Xiao-Rong Wang, Ming-Liang He, Jin-Quan Cheng, Lin Chen
Sexually Transmitted Infections Feb 2010, 86 (1) 15-20; DOI: 10.1136/sti.2009.037440
