title: [Chronic bronchitis syndrome. II. Histochemical and electron microscopic studies].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001706:Biopsy; D001991:Bronchitis / Q000378:metabolism / Q000473:pathology*; D002908:Chronic Disease; D005260:Female; D006025:Glycosaminoglycans / Q000378:metabolism*; D006651:Histocytochemistry; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged
chemical_list: D006025:Glycosaminoglycans