Web-based behavioral surveillance among men who have sex with men: a comparison of online and offline samples in London, UK.

MLA

Elford, Jonathan, et al. “Web-Based Behavioral Surveillance among Men Who Have Sex with Men: A Comparison of Online and Offline Samples in London, UK.” Journal of Acquired Immune Deficiency Syndromes (1999), vol. 35, no. 4, Apr. 2004, pp. 421–26. EBSCOhost, https://doi.org/10.1097/00126334-200404010-00012.

APA

Elford, J., Bolding, G., Davis, M., Sherr, L., & Hart, G. (2004). Web-based behavioral surveillance among men who have sex with men: a comparison of online and offline samples in London, UK. Journal of Acquired Immune Deficiency Syndromes (1999), 35(4), 421–426. https://doi.org/10.1097/00126334-200404010-00012

Chicago

Elford, Jonathan, Graham Bolding, Mark Davis, Lorraine Sherr, and Graham Hart. 2004. “Web-Based Behavioral Surveillance among Men Who Have Sex with Men: A Comparison of Online and Offline Samples in London, UK.” Journal of Acquired Immune Deficiency Syndromes (1999) 35 (4): 421–26. doi:10.1097/00126334-200404010-00012.