title: The in vitro determination of the D antigens of poliomyelitis viruses. I. The gel diffusion tes.
mesh_terms: D000818:Animals; D000941:Antigens / Q000032:analysis*; D002417:Cattle; D006168:Guinea Pigs; D005779:Immunodiffusion; D017955:Poliovirus / Q000276:immunology*
chemical_list: D000941:Antigens