title: Extrahepatic hepadnavirus DNA: what does it mean?
mesh_terms: D000818:Animals; D004279:DNA, Viral / Q000032:analysis*; D006515:Hepatitis B virus / Q000235:genetics*; D006524:Hepatitis, Viral, Animal / Q000382:microbiology; D009928:Organ Specificity; D014779:Virus Replication
chemical_list: D004279:DNA, Viral