Healthy penis: San Francisco's social marketing campaign to increase syphilis testing among gay and bisexual men

Ahrens, K., Kent, C. K., Montoya, J. A., Rotblatt, H., McCright, J., Kerndt, P., & Klausner, J. D. (2006, December). Healthy penis: San Francisco’s social marketing campaign to increase syphilis testing among gay and bisexual men. PLoS Medicine. https://doi.org/10.1371/journal.pmed.0030474