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Then, they do weekly injections for a month
It is unclear exactly how much vitamin B12 a person would need to take to lead to hypercobalaminemia
Open the syringe and needle packets then snuggly fasten the needle onto the end of the syringe
Warning signs of intramuscular injection damage include redness, increased swelling, fever, and warmth of the skin at the injection site
Retain outer packaging until identity checks are complete, and report damaged seals to purchasing before experimental work continues
PMCID: PMC11050313.
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