CONTINUING INCREASES IN SEXUAL RISK BEHAVIOR AND SEXUALLY TRANSMITTED DISEASES AMONG MEN WHO HAVE SEX WITH MEN: SAN FRANCISCO, CALIF, 19992001
Sanny Y. Chen, MHS,
Steven Gibson, MSW,
Mitchell H. Katz, MD,
Jeffrey D. Klausner, MD, MPH,
James W. Dilley, MD,
Sandra K. Schwarcz, MD, MPH,
Timothy A. Kellogg, MA and
Willi McFarland, MD, PhD
At the time of the study, Sanny Y. Chen was with the Johns Hopkins Bloomberg School of Public Health, Baltimore, Md, and the San Francisco Department of Public Health, San Francisco, Calif. Willi McFarland, Mitchell H. Katz, Sandra K. Schwarcz, Timothy A. Kellogg, and Jeffrey D. Klausner were with the San Francisco Department of Public Health. Steven Gibson was with the Stop AIDS Project, San Francisco, Calif. James W. Dilley is with the AIDS Health Project, University of California, San Francisco.

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FIGURE 1 Trends in sexual risk behavior and sexually transmitted diseases among men who have sex with men: San Francisco, Calif, 19992001.
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Copyright © 2002 by the American Public Health Association