APA (7th ed.) Citation

Purcell, D. W., Crepaz, N., Su, J. J., Weinstock, H., Gau, Z., Denning, P., . . . Johnson, C. H. (2012). Estimating the population size of men who have sex with men in the United States to obtain HIV and syphilis rates. The open AIDS journal, 6, 98-107. doi:10.2174/1874613601206010098

Chicago Style (17th ed.) Citation

Purcell, David W., et al. "Estimating the Population Size of Men Who Have Sex with Men in the United States to Obtain HIV and Syphilis Rates." The Open AIDS Journal 6 (2012): 98-107. https://doi.org/10.2174/1874613601206010098.

MLA (9th ed.) Citation

Purcell, David W., et al. "Estimating the Population Size of Men Who Have Sex with Men in the United States to Obtain HIV and Syphilis Rates." The Open AIDS Journal, vol. 6, 2012, pp. 98-107, https://doi.org/10.2174/1874613601206010098.