title: Detecting pneumococcal antigen in community acquired pneumonia.
mesh_terms: D000942:Antigens, Bacterial / Q000032:analysis*; D006801:Humans; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis*; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial