title: Importance of differential air-fluid levels on plain radiographs in the diagnosis of bowel obstruction.
authors.forename: D
authors.initials: D
authors.lastname: Bryk
mesh_terms: 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