Drug abuse aspects of HIV/AIDS and other infections.
D000163:Acquired Immunodeficiency Syndrome / Q000209:etiology; D015658:HIV Infections / Q000209:etiology*; D006801:Humans; D009316:National Institutes of Health (U.S.); D012107:Research Design; D012109:Research Support as Topic; D012307:Risk Factors; D012309:Risk-Taking; D019966:Substance-Related Disorders / Q000150:complications*; D014481:United States