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Description
Multivariate analysis, principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA), were performed using R packages pcaMethods and ropls, respectively 49,50,51,52,53
Possibility of pain at the point of injection

Muir, J

Yes, you need it
However, many wellness providers prefer Methylcobalamin because it is bio-identical, meaning it is the same form found in nature and doesnt require an extra conversion step by your liver
