title: Early observations on cytopathogenicity of poliovirus.
mesh_terms: D000818:Animals; D002478:Cells, Cultured / Q000382:microbiology; D002642:Chick Embryo / Q000166:cytology; D003588:Cytopathogenic Effect, Viral; D049673:History, 20th Century; D006801:Humans; D011051:Poliomyelitis / Q000266:history; D017955:Poliovirus / Q000472:pathogenicity*; D014773:Virology / Q000266:history