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The most clinically interesting finding was the difference in tolerability
How Long Does It Take for Vitamin B12 Supplements to Work
Skip it and you risk contaminating a vial worth hundreds of dollars
This is normal and does not indicate protocol failure
Consider this: In cases of life-threatening cyanide poisoning, doctors inject 5,000,000 g of B12, causing blood levels to skyrocket to 560,000,000 pmol/L
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