Vitamin B12

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Revision as of 11:52, 24 October 2018 by Avisha (talk | contribs) (Created page with "B12 levels in the blood are worthless. You need a urine Methylmalonic acid level to determine if B12 is adequate and functioning.")
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B12 levels in the blood are worthless. You need a urine Methylmalonic acid level to determine if B12 is adequate and functioning.