Chest x-rays after abdominal surgery.
D000005:Abdomen / Q000601:surgery*; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011859:Radiography; D013896:Thoracic Diseases / Q000000981:diagnostic imaging* / Q000209:etiology