title: [Determination of serum Mycoplasma pneumoniae antibodies and an intradermal hypersensitive test with its antigen in chronic obstructive pulmonary disease].
mesh_terms: D000293:Adolescent; D000328:Adult; D000907:Antibodies, Bacterial / Q000032:analysis*; D005260:Female; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007428:Intradermal Tests; D008173:Lung Diseases, Obstructive / Q000276:immunology*; D008297:Male; D008875:Middle Aged; D009177:Mycoplasma pneumoniae / Q000276:immunology*; D011019:Pneumonia, Mycoplasma / Q000276:immunology
chemical_list: D000907:Antibodies, Bacterial; D007136:Immunoglobulins