title: [Ultrastructural changes of lesions in chronic bronchitis and pulmonary emphysema (author's transl)].
mesh_terms: D000368:Aged; D001991:Bronchitis / Q000473:pathology*; D006801:Humans; D008168:Lung / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000473:pathology*