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While the trials reported minimal injection site issues, proper technique remains important for safety
Other risk factors include age, digestive issues like Crohns disease, or medications that interfere with B12 absorption
Vitamin Deficiency Solutions: Which is Right for You
Vitamin B12 injections are medically necessary when a patient has severe deficiency, neurological symptoms requiring rapid correction, or a condition that prevents adequate oral absorption
Hackett, R
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