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(3) In Canada, this vitamin is often administered through intramuscular injections in a physicians office, which results in substantial costs and inconvenience

The other three components work at lower concentrations, which is why they appear at 10mg each

[DOI] [PMC free article] [PubMed] [Google Scholar] 16.Farrell J.J., Sherva R.M., Chen Z.Y., Luo H.Y., Chu B.F., Ha S.Y

Shimada, M., Hibino, M
