title: Postoperative aspiration pneumonia.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000768:Anesthesia, General / Q000009:adverse effects; D002245:Carbon Dioxide / Q000097:blood; D002648:Child; D002675:Child, Preschool; D005260:Female; D005750:Gastric Juice; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007223:Infant; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D011015:Pneumonia, Aspiration / Q000175:diagnosis / Q000209:etiology* / Q000401:mortality; D011183:Postoperative Complications; D013902:Radiography, Thoracic; D012131:Respiratory Insufficiency / Q000401:mortality; D013903:Thoracic Surgery; D013909:Thorax / Q000601:surgery
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen