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When B12 levels are equivocal, additional testing with methylmalonic acid (MMA) and homocysteine levels can provide greater diagnostic accuracy, as both are elevated in true B12 deficiency
Access the full publication through NEJM.org for detailed methodology, adverse event data, and subgroup analyses
Bioavailability of oral formulations is typically 1-3% compared to near 100% for subcutaneous injection
Each non-invasive procedure is designed to accomplish one or more of the following tasks eliminate unwanted fat, detoxify and tighten the skin, stimulate collagen, or infuse subtle enhancements to restore a younger, more radiant countenance
Instead, intramuscular injections may be more suitable
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