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Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Barium swallow
Barium swallow: An upper gastrointestinal series (barium swallow) is an X-ray test used to define the anatomy of the upper digestive tract. Women who are or may be pregnant should notify the doctor requesting the procedure and the radiology staff. The test involves filling the esophagus, stomach, and small intestines with a white liquid material (barium).