Scheer Susan, Peterson Ingrid, Page-Shafer Kimberly, Delgado Viva, Gleghorn Alice, Ruiz Juan, Molitor Fred, McFarland William, Klausner Jeffrey
AIDS Office, San Francisco Department of Public Health, San Francisco, CA 94102, USA.
Am J Public Health. 2002 Jul;92(7):1110-2. doi: 10.2105/ajph.92.7.1110.