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Stern Warning: Interfering with your immune system is perilous
Supplementary material The Supplementary Material for this article can be found online at: References 1 Anon (2018)
All Spectrum Chemical USP dietary supplement grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP) per 21CFR part 211 in FDA registered and inspected facilities
However, there is no evidence that B12 injections confer any greater benefit than does a good quality B vitamin complex, even in cases of B vitamin deficiency
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