title: [Clinical significance of evaluating acid-base imbalance with the anion gap in chronic respiratory failure].
mesh_terms: D000136:Acid-Base Equilibrium; D000137:Acid-Base Imbalance / Q000175:diagnosis* / Q000209:etiology; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011660:Pulmonary Heart Disease / Q000150:complications*; D012131:Respiratory Insufficiency / Q000150:complications*