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I am a double board certified US doctor of 20 years experience and I can help you with this.
Not sure what your question is.
We do not diagnose or treat. We answer questions.
I can help you with direction here though.
When this happens, angiodysplasia of the bowel is likely.
It can show negative results, but bleed.
A red cell scan [tagged scan] is an older test that will work when he is bleeding to indicated the location.
I would ask about this.
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