A barium swallow (or esophagography) is a medical imaging procedure used to examine the upper GI (gastrointestinal) tract, which includes the esophagus and, to a lesser extent, the stomach.
Read more about Barium Swallow: Principle, Examination, Pathology
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“The world moves, but we seem to move with it. When I studied physiology before ... there were two hundred and eight bones in the body. Now there are two hundred and thirty- eight.”
—Ellen Henrietta Swallow Richards (1842–1911)