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Severe anemia and hypoproteinemia were significantly and independently associated with vitamin B12 deficiency
The length of time B12 takes to work depends on your age and gut health, and how your body processes the vitamin
Follow laboratory handling protocols
Accounting for syringe dead space Every syringe has a small amount of "dead space," the volume of liquid that remains in the needle hub and syringe tip after you push the plunger all the way down
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