Importance of differential air-fluid levels on plain radiographs in the diagnosis of bowel obstruction.
Bryk
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D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D011237:Predictive Value of Tests; D012372:ROC Curve; D011859:Radiography; D012680:Sensitivity and Specificity