Inclusion of the female condom in a male condom-only intervention in the sex industry in China: a cross-sectional analysis of pre- and post-intervention surveys in three study sites.
Liao S, Weeks MR, Wang Y, Nie L, Li F, Zhou Y, Zeng X, Jiang J, He B, Li J, et al. Public Health. 2011 May; 125(5):283-92. Epub 2011 Apr 21.