title: Susceptibility of addicts to infection and neoplasia.
mesh_terms: D003932:Heroin; D006801:Humans; D007239:Infections / Q000209:etiology* / Q000276:immunology; D009369:Neoplasms / Q000209:etiology* / Q000276:immunology; D019966:Substance-Related Disorders / Q000150:complications* / Q000276:immunology
chemical_list: D003932:Heroin