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Clean the injection site with an alcohol swab, pinch the skin to create a fold, insert the needle at a 45-90 degree angle, slowly inject the solution, then withdraw the needle and apply gentle pressure to the site
Salatzki, J
Most changes are harmless and temporary
More serious symptoms of B12 deficiency include disturbing red blood cell formation and elevate homocysteine levels, which negatively impacts neurological and cardiovascular health, in addition to posing risks during pregnancy
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