title: [Prolonged postoperative hypoxemia--a clinical study].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D008171:Lung Diseases / Q000601:surgery*; D008875:Middle Aged; D011013:Pneumonectomy; D011183:Postoperative Complications; D013997:Time Factors