Human immunodeficiency virus (HIV) risk, prevention, and testing behaviors--United States, National HIV Behavioral Surveillance System: men who have sex with men, November 2003-April 2005.
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A. Lansky | M. Cribbin | Tricia Hall | T. Finlayson | E. Dinenno | A. Drake | S. Behel | T. Sanchez | S. Kramer