Aphrodisiac use associated with HIV infection in elderly male clients of low-cost commercial sex venues in Guangxi, China: A matched case-control study

Tang, Z., Wu, X., Li, G., Shen, Z., Zhang, H., Lan, G., … Shi, C. X. (2014). Aphrodisiac use associated with HIV infection in elderly male clients of low-cost commercial sex venues in Guangxi, China: A matched case-control study. PLoS ONE, 9(10). https://doi.org/10.1371/journal.pone.0109452