title: Curschmann's spirals--a cytological finding in chronic bronchitis.
mesh_terms: D000328:Adult; D000368:Aged; D001991:Bronchitis / Q000150:complications / Q000473:pathology*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000150:complications; D012907:Smoking; D013183:Sputum / Q000166:cytology; D013997:Time Factors