title: Heterogenicity and stability of neutralizing antigens of type I polioviruses (preliminary report).
mesh_terms: D015478:Antigens, Heterophile / Q000032:analysis*; D000956:Antigens, Viral / Q000032:analysis*; D000939:Epitopes / Q000032:analysis; D009500:Neutralization Tests; D017955:Poliovirus / Q000276:immunology*
chemical_list: D015478:Antigens, Heterophile; D000956:Antigens, Viral; D000939:Epitopes