Social policy: AIDS and intravenous drug use.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control* / Q000628:therapy; D004335:Drug and Narcotic Control / Q000331:legislation & jurisprudence; D004493:Education; D006801:Humans; D013287:Illicit Drugs; D009339:Needles; D011640:Public Policy; D012495:San Francisco; D012940:Social Problems; D019966:Substance-Related Disorders / Q000517:prevention & control*; D014481:United States