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1 From the Departments of Medicine, State University of New York, Downstate Medical Center, and Kings County Hospital Center, Brooklyn, New York
A bolus made of marshmallow impregnated with barium sulfate is described and suggested as the "ideal" bolus for fluoroscopic evaluation of esophageal disease. Its elasticity, plasticity, shape, size, ease of swallowing and radiopacity contribute to the information which may be derived from fluoroscopic study of the esophagus.
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