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Why B12 Matters: Vitamin B12 is essential for: Red blood cell production DNA synthesis Nerve function Mental clarity Energy metabolism Its especially critical for vegetarians, vegans, older adults, or those with conditions like pernicious anemia or digestive malabsorption issues (e.g., celiac, Crohns, or low stomach acid)

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How many CPT 64483 injections can a patient have per year under Medicare