title: Lung volume changes in relation to airway closure in the postoperative period: a possible mechanism of postoperative hypoxaemia.
mesh_terms: D000005:Abdomen / Q000601:surgery; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D007201:Indicator Dilution Techniques; D008168:Lung; D009584:Nitrogen; D011183:Postoperative Complications / Q000209:etiology*; D011868:Radioisotopes; D012119:Respiration; D013147:Spirometry; D014692:Ventilation-Perfusion Ratio; D014978:Xenon
chemical_list: D011868:Radioisotopes; D014978:Xenon; D009584:Nitrogen