APA (7th ed.) Citation

DH, O., LM, P., JP, P., & JA, C. (2007). Changes in prevalence of HIV infection and sexual risk behavior in men who have sex with men in San Francisco: 1997 2002. American Journal of Public Health, 97(9), 1677. https://doi.org/10.2105/AJPH.2005.062851

Chicago Style (17th ed.) Citation

DH, Osmond, Pollack LM, Paul JP, and Catania JA. "Changes in Prevalence of HIV Infection and Sexual Risk Behavior in Men Who Have Sex with Men in San Francisco: 1997 2002." American Journal of Public Health 97, no. 9 (2007): 1677. https://doi.org/10.2105/AJPH.2005.062851.

MLA (9th ed.) Citation

DH, Osmond, et al. "Changes in Prevalence of HIV Infection and Sexual Risk Behavior in Men Who Have Sex with Men in San Francisco: 1997 2002." American Journal of Public Health, vol. 97, no. 9, 2007, p. 1677, https://doi.org/10.2105/AJPH.2005.062851.

Warning: These citations may not always be 100% accurate.