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They are also ideal for vegans, older adults, and those with nutrient absorption issues
For chronic conditions, this could be a lifelong treatment plan
In some circles this route has been regarded as an effective alternative to parenteral administration since the 1950s, during which time several studies showed serum vitamin B12 concentration to normalise after taking large oral doses
Day 46 peak (Figure S4C) approximately 1.52 higher than the 8-day average
Not for medical purposes
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