title: Sputum counterimmunoelectrophoresis in the diagnosis of pneumococcal pneumonia.
mesh_terms: D003378:Counterimmunoelectrophoresis; D006801:Humans; D007122:Immunoelectrophoresis; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis*; D013183:Sputum / Q000276:immunology* / Q000382:microbiology; D013194:Staining and Labeling