title: Pneumonia link to HIV status in drug use.
mesh_terms: D001424:Bacterial Infections / Q000150:complications*; D006679:HIV Seropositivity / Q000150:complications*; D015497:HIV-1; D006716:Homosexuality; D006801:Humans; D008297:Male; D011014:Pneumonia / Q000150:complications*; D015819:Substance Abuse, Intravenous