Determine cause: It would be important to determine the cause of such low levels of Vit D and B12. Is there a GI disorder causing malabsorption? Colitis? Sprue? Is there a parasite? Previous GI surgery?
Answered 7/30/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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