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upper GI series

n :  fluoroscopic and radiographic examination (as for the detection of gastroesophageal reflux, hiatal hernia, or ulcers) of the esophagus, stomach, and duodenum during and following oral ingestion of a solution of barium sulfate - called also upper gastrointestinal series  .
 
 

 
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Rangely District Hospital (Rangely, Colorado - Rio Blanco County)