title: Chronic active hepatitis in intravenous drug abusers may be delta agent infection associated.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006521:Hepatitis, Chronic / Q000209:etiology*; D006801:Humans; D008297:Male; D012328:RNA Viruses; D019966:Substance-Related Disorders / Q000150:complications*; D014777:Virus Diseases / Q000150:complications*