title: A study of Hemophilus influenzae precipitins in the serum of working men in relation to smoking habits, bronchial infection, and airway obstruction.
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000453:epidemiology / Q000276:immunology*; D000907:Antibodies, Bacterial / Q000032:analysis*; D001991:Bronchitis / Q000453:epidemiology / Q000276:immunology*; D002908:Chronic Disease; D006192:Haemophilus Infections / Q000276:immunology; D006193:Haemophilus influenzae / Q000276:immunology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011234:Precipitins / Q000032:analysis*; D011446:Prospective Studies; D012044:Regression Analysis; D012129:Respiratory Function Tests; D012907:Smoking; D013183:Sputum
chemical_list: D000907:Antibodies, Bacterial; D011234:Precipitins