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If untreated, B12 deficiency can lead to serious neurological and cardiovascular complications
Rapid 2nd-tier test for measurement of 3-OH-propionic and methylmalonic acids on dried blood spots: reducing the false-positive rate for propionylcarnitine during expanded newborn screening by liquid chromatography-tandem mass spectrometry
It is not a screening test, it has never been validated as one, and no guideline recommends measuring B12 to look for cancer
This vitamin plays an essential role in red blood cell formation, cell metabolism, and nerve function
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