title: The natural history of chronic delta hepatitis.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002908:Chronic Disease; D005260:Female; D003699:Hepatitis D / Q000209:etiology / Q000473:pathology*; D006801:Humans; D008099:Liver / Q000473:pathology*; D008103:Liver Cirrhosis / Q000209:etiology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D019966:Substance-Related Disorders / Q000150:complications