Acute exacerbations and the fall of FEV 0.75 in chronic obstructive airways disease.
D001249:Asthma / Q000150:complications*; D001991:Bronchitis / Q000150:complications* / Q000503:physiopathology; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000150:complications* / Q000503:physiopathology; D012131:Respiratory Insufficiency / Q000209:etiology*; D012621:Seasons; D012907:Smoking / Q000150:complications; D013147:Spirometry