title: Electron microscopy of poliovirus antigen antibody precipitates extracted from gel diffusion plates.
mesh_terms: D000937:Antigen-Antibody Reactions; D000941:Antigens; D005779:Immunodiffusion; D008854:Microscopy, Electron; D017955:Poliovirus / Q000276:immunology*
chemical_list: D000941:Antigens