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Testing : Beyond serum B12, measure methylmalonic acid (MMA) and homocysteine for functional deficiency
What are the symptoms of too much B12
PMID: 71
This produces soluble factors which can induce demyelination or neurodegeneration either directly or indirectly through microglia activation (Lassmann, 2018)
For example, a 3 mL dose becomes two 1.5 mL injections in opposite abdominal quadrants
These results align well with experimental data [99]
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