APA

Thomas S. M., Tse D. B., Ketner D. S., Rochford G., Meyer D. A., Zade D. D., Halkitis P. N., Nádas A., Borkowsky W. & Marmor M. (20070205). CCR5 expression and duration of high risk sexual activity among HIV-seronegative men who have sex with men. : AIDS (London, England).

Chicago

Thomas Susan M, Tse Doris B, Ketner D Scott, Rochford Gemma, Meyer Daniel A, Zade David D, Halkitis Perry N, Nádas Arthur, Borkowsky William and Marmor Michael. 20070205. CCR5 expression and duration of high risk sexual activity among HIV-seronegative men who have sex with men. : AIDS (London, England).

Harvard

Thomas S. M., Tse D. B., Ketner D. S., Rochford G., Meyer D. A., Zade D. D., Halkitis P. N., Nádas A., Borkowsky W. and Marmor M. (20070205). CCR5 expression and duration of high risk sexual activity among HIV-seronegative men who have sex with men. : AIDS (London, England).

MLA

Thomas Susan M, Tse Doris B, Ketner D Scott, Rochford Gemma, Meyer Daniel A, Zade David D, Halkitis Perry N, Nádas Arthur, Borkowsky William and Marmor Michael. CCR5 expression and duration of high risk sexual activity among HIV-seronegative men who have sex with men. : AIDS (London, England). 20070205.