[Respiratory failure: risk factors in acute exacerbation and their influence on the prognosis of chronic respiratory failure].
D000368:Aged; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D011379:Prognosis; D012131:Respiratory Insufficiency / Q000209:etiology / Q000401:mortality*; D012140:Respiratory Tract Diseases / Q000150:complications; D012306:Risk