title: Contribution of airway closure to pulmonary shunting in hypoxemic surgical patients.
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000150:complications* / Q000209:etiology* / Q000503:physiopathology; D001166:Arteriovenous Shunt, Surgical; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000209:etiology / Q000601:surgery* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009584:Nitrogen / Q000502:physiology; D011175:Positive-Pressure Respiration; D011652:Pulmonary Circulation; D011653:Pulmonary Diffusing Capacity
chemical_list: D009584:Nitrogen