Positive, negative, unknown: assumptions of HIV status among HIV-positive men who have sex with men.
Parsons JT, Severino J, Nanin J, Punzalan JC, von Sternberg K, Missildine W, Frost D. Positive, negative, unknown: assumptions of HIV status among HIV-positive men who have sex with men. AIDS Educ Prev. 2006 Apr; 18(2):139-49.