title: Studies on new attenuated strains of type III live poliomyelitis vaccine. I. Development of a new type III attenuated poliovirus.
mesh_terms: D000818:Animals; D000882:Haplorhini; D017955:Poliovirus / Q000472:pathogenicity*; D011054:Poliovirus Vaccine, Inactivated / Q000592:standards*; D014613:Vaccines, Attenuated / Q000592:standards; D010948:Viral Plaque Assay
chemical_list: D011054:Poliovirus Vaccine, Inactivated; D014613:Vaccines, Attenuated