title: The biology of hepadnaviruses.
mesh_terms: D000818:Animals; D006528:Carcinoma, Hepatocellular / Q000209:etiology; D002353:Carrier State / Q000235:genetics; D004261:DNA Replication; D004279:DNA, Viral / Q000235:genetics; D005786:Gene Expression Regulation; D005814:Genes, Viral; D014943:Global Health; D006509:Hepatitis B / Q000453:epidemiology / Q000209:etiology / Q000503:physiopathology; D006514:Hepatitis B Surface Antigens / Q000235:genetics / Q000276:immunology; D006515:Hepatitis B virus / Q000235:genetics / Q000276:immunology / Q000648:ultrastructure; D004371:Hepatitis Virus, Duck / Q000235:genetics; D006518:Hepatitis Viruses / Q000235:genetics / Q000276:immunology / Q000472:pathogenicity / Q000502:physiology; D006524:Hepatitis, Viral, Animal / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008113:Liver Neoplasms / Q000209:etiology; D008392:Marmota / Q000235:genetics / Q000382:microbiology; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D006514:Hepatitis B Surface Antigens