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Description
Functional recovery measured by an activity of daily living score may take as long as 12 months, although single cognitive tests may already show some improvement within 3 months [82]

In extreme cases, untreated deficiency may lead to heart problems and permanent disability
This is to ensure that the injection is suitable for you

This isnt just a simple vitamin deficiency

doi: 10.1038/ni.2166 529 SmithMBHaneyEMcDonaghMPappasMDaegesMWassonNet al

Yes, even with reduced appetite
