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For some people, sticking themselves is just hard to do
Healthcare providers must guarantee proper injection site selection and needle placement to avoid causing tissue damage or penetrating too deep into surrounding muscle tissue
If you follow a strict vegan or vegetarian diet, getting enough B12 from food alone can be a real challenge
Pharmaceutical preparations of vitamin B 12 may be given by intramuscular injection
Cobalamin-responsive disorders in the ambulatory care setting: unreliability of cobalamin, methylmalonic acid, and homocysteine testing
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