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In this group, each sign had a positive predictive value of 100%. The negative predictive value of the alimentary tract diameter was 90%; that of nonvisualization of the esophagogastric junction was 94.7%. Inclusion of ultrasonography in the initial work-up of patients with symptoms of ...
In this group, each sign had a positive predictive value of 100%. The negative predictive value of the alimentary tract diameter was 90%; that of non-visualization of the esophagogastric junction was 94.7%. Inclusion of ultrasonography in the initial work-up of patients with symptoms of ...