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doi: 10.1371/journal.pone.0021827 277 ToK.CaoR.YegiazaryanA.OwensJ.NguyenT.SasaniniaK.et al
As injections are more easily and quickly absorbed by the body, many people use B12 injections as opposed to oral supplements
Each batch undergoes analytical testing to verify purity specifications and support reproducible laboratory research
(2016) 37:e140
Ongoing monitoring for liver function, kidney function, and other parameters is prudent during extended use
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