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Description
If you are supplementing with B12 make sure to use Methylcobalamin and not Cyanocobalamin

The analytes TSH (0.05 mL), hydroxylamine, and other are contained in the sample tubes in 2.0 mL each

This product is labeled strictly For Research Use Only (RUO)

Wang BD, Yang ZY, Wang Q, Cai TK, Crewdson P
TABLE 4 Newcastle - Ottawa quality assessment scale for case-control studies

The amount of B12 you need will depend on your health status
