title: Bronchial cartilage in chronic obstructive lung disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001284:Atrophy / Q000473:pathology; D001980:Bronchi / Q000473:pathology*; D001991:Bronchitis / Q000209:etiology / Q000473:pathology; D002356:Cartilage / Q000473:pathology*; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000209:etiology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000209:etiology / Q000473:pathology; D012737:Sex Factors