title: Progression of HIV infection in drug users.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology* / Q000209:etiology / Q000276:immunology; D015704:CD4 Antigens / Q000032:analysis; D006679:HIV Seropositivity; D015497:HIV-1; D006801:Humans; D015999:Multivariate Analysis; D019966:Substance-Related Disorders; D016176:T-Lymphocyte Subsets / Q000276:immunology; D014481:United States / Q000453:epidemiology
chemical_list: D015704:CD4 Antigens