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You may experience minor pain and a tugging sensation during the procedure
Nerve problems, such as: numbness or tingling (like muscle weakness)
Many bodily functions depend on vitamin B12
The best sites for B12 injections
You can get pernicious anemia if: You have an autoimmune disease that makes your immune system attack the cells in your stomach that produce intrinsic factor, a protein that helps your body absorb B12
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