title: Prevention of postoperative pulmonary complications.
mesh_terms: D000368:Aged; D006801:Humans; D007813:Laparotomy; D008171:Lung Diseases / Q000209:etiology / Q000517:prevention & control*; D011183:Postoperative Complications / Q000517:prevention & control*; D012129:Respiratory Function Tests; D012306:Risk; D013147:Spirometry; D013903:Thoracic Surgery