title: The role of immunoglobulin A in endogenous bronchial defense mechanisms in chronic bronchitis.
mesh_terms: D001980:Bronchi / Q000276:immunology*; D001991:Bronchitis / Q000276:immunology*; D002908:Chronic Disease; D004247:DNA / Q000378:metabolism; D004848:Epithelium / Q000276:immunology; D005340:Fibrinogen / Q000378:metabolism; D006801:Humans; D005779:Immunodiffusion; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007249:Inflammation / Q000276:immunology; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D009092:Mucous Membrane / Q000276:immunology; D013183:Sputum / Q000032:analysis
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D005340:Fibrinogen; D004247:DNA; D007770:L-Lactate Dehydrogenase