title: Detection of type-specific pneumococcal antigens by counterimmunoelectrophoresis. I. Methodology and immunologic properties of pneumococcal antigens.
mesh_terms: D000941:Antigens / Q000032:analysis*; D011232:Chemical Precipitation; D000431:Ethanol; D006801:Humans; D005779:Immunodiffusion; D008722:Methods; D010996:Pleural Effusion / Q000276:immunology; D011014:Pneumonia / Q000276:immunology; D011135:Polysaccharides, Bacterial / Q000032:analysis* / Q000097:blood / Q000652:urine
chemical_list: D000941:Antigens; D011135:Polysaccharides, Bacterial; D000431:Ethanol