HIV prevalence and related risk factors among male sex workers in Shenzhen, China: results from a time-location sampling survey.
Cai WD, Zhao J, Zhao JK, Raymond HF, Feng YJ, Liu J, McFarland W, Gan YX, Yang ZR, Zhang Y, Tan JG, Wang XR, He ML, Cheng JQ, Chen L.
Cai WD, et al. Among authors: chen l.
Sex Transm Infect. 2010 Feb;86(1):15-20. doi: 10.1136/sti.2009.037440. Epub 2009 Oct 22.
Sex Transm Infect. 2010.
PMID: 19854703