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When you eat, food passes from the throat to the stomach through the esophagus (also called the food pipe or swallowing tube). Once food is in the stomach, a ring of muscles keeps it from leaking backward into the esophagus.
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Barrett's esophagus is caused by gastroesophageal reflux disease that allows the stomach's contents to damage the cells lining the lower esophagus. However, every person who has GERD does not develop Barrett's esophagus. Researchers have thus far ...
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