title: [Secretory activity of gland cells in chronic bronchitis].
mesh_terms: D001980:Bronchi / Q000378:metabolism* / Q000473:pathology*; D001991:Bronchitis / Q000473:pathology*; D006025:Glycosaminoglycans / Q000378:metabolism; D006651:Histocytochemistry; D006801:Humans; D009092:Mucous Membrane / Q000378:metabolism / Q000473:pathology; D012704:Serous Membrane / Q000378:metabolism / Q000473:pathology
chemical_list: D006025:Glycosaminoglycans