Condoms used but sex not well protected.
Lau JT, Zhou H, Su XY, Feng TJ, Hong FC, Tsui HY, Ma YL, Wang Z, Walden D.
Lau JT, et al. Among authors: su xy.
AIDS Behav. 2014 Oct;18(10):1934-44. doi: 10.1007/s10461-013-0690-y.
AIDS Behav. 2014.
PMID: 24452496