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In such cases, MMA concentrations in urine should be adjusted for creatinine excretion (Norman & Morrison, 1993) and the ratio of urinary MMA to creatinine (uMMA/C) applied to assess B12 status

Sivanesan S, Rajeshkumar S
Explore Oral health Gum support and the mouth microbiome

The most important thing to remember here is to be gentle
However, all research applications should follow proper safety protocols
