Find the foci of 
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Definitions:
Gastric Ulcer
A sore or lesion that develops on the lining of the stomach, often resulting from infection with H. pylori bacteria or prolonged use of NSAIDs.
Stomach Ulcer
A sore that develops on the lining of the stomach or the small intestine, often caused by infection with H. pylori bacteria or prolonged use of NSAIDs.
Duodenum
The first segment of the small intestine.
Colon
The longest part of the large intestine, functioning in the absorption of water and electrolytes from digested materials before waste elimination.
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