b12 injection site sore How to self-inject intramuscular vitamin - Overview Are Vitamin B12 Shots Right
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References : Office of Dietary Supplements, NIH

This shows how important it is for breast cancer patients to be careful with B12 supplements

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Always follow the instructions as displayed on the product label: Lipo-Mino-Mix-C: Store under refrigeration (2 to 8C/36 to 46F)
