title: Picornaviridae: second report.
mesh_terms: D002139:Caliciviridae / Q000145:classification; D004686:Encephalomyocarditis virus / Q000145:classification; D004770:Enterovirus / Q000145:classification; D010849:Picornaviridae / Q000145:classification*; D012229:Rhinovirus / Q000145:classification; D009626:Terminology as Topic