The incidence of syphilis, HIV and HCV and associated factors in a cohort of men who have sex with men in Nanjing, China

Hao C, Yan H, Yang H, Huan X, Guan W, Xu X, Zhang M, Tang W, Wang N, Gu J, Lau JTF. The incidence of syphilis, HIV and HCV and associated factors in a cohort of men who have sex with men in Nanjing, China. Sex Transm Infect. 2011; 87(3): 199–201.