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Black Poop: When It's Harmless and When It's NotBlack poop, or melena, can happen when there is bleeding in the upper digestive tract, such as the stomach or esophagus. As ...
Verywell Health on MSN4mon
Endoscopy vs. Colonoscopy: What’s the Difference?They are used to diagnose conditions in different parts of the digestive tract. An upper endoscopy may be used to diagnose or ...
Critical assessment of evidence to help you make decisions. Advice, rather than formal NICE guidance.
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