Taxonomy of viruses, 1980.
D000818:Animals; D002139:Caliciviridae / Q000145:classification; D004267:DNA Viruses / Q000145:classification*; D006515:Hepatitis B virus / Q000145:classification; D006801:Humans; D009980:Influenza A virus / Q000145:classification; D012328:RNA Viruses / Q000145:classification*; D009626:Terminology as Topic; D014780:Viruses / Q000145:classification*