Malaria among heroin users.
D000328:Adult; D002140:California; D004812:Epidemiologic Methods; D003932:Heroin; D006801:Humans; D007275:Injections, Intravenous / Q000009:adverse effects; D008288:Malaria / Q000453:epidemiology* / Q000209:etiology / Q000235:genetics / Q000382:microbiology; D008297:Male; D009021:Morphine Dependence / Q000150:complications*; D010966:Plasmodium vivax / Q000302:isolation & purification
D003932:Heroin