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Front of thigh This is a popular self-injection site because of its convenience and low discomfort level
Meaning the absorption of B-12 depends on a protein produced in your stomach called intrinsic factor
Allowing multiple withdrawals from one vial , thanks to the preservative that helps prevent bacterial contamination once the vial has been opened making it more cost-effective and practical for repeated use
Acta Derm.-Venereol
Eur J Clin Nutr 2018 Jan;72(1):105-111
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