APA (7th ed.) Citation

Ruan Yuhua, Chen Li, Wu Jianhong, Lou Jie, & Shao Yiming. (2009). A sex-role-preference model for HIV transmission among men who have sex with men in China. BMC.

Chicago Style (17th ed.) Citation

Ruan Yuhua, Chen Li, Wu Jianhong, Lou Jie, and Shao Yiming. A Sex-role-preference Model for HIV Transmission Among Men Who Have Sex with Men in China. BMC, 2009.

MLA (9th ed.) Citation

Ruan Yuhua, et al. A Sex-role-preference Model for HIV Transmission Among Men Who Have Sex with Men in China. BMC, 2009.