HIV incidence among young men who have sex with men--seven U.S. cities, 1994-2000.
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R. Janssen | L. Torian | M. Katz | D. Celentano | J. Karon | W. Mcfarland | B. Koblin | D. MacKellar | H. Thiede | S. Stoyanoff | L. Valleroy | D. Rosen | M. Lalota | D. Shehan | W. McFarland