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Ann Emerg.Med 2007;49(6):794-801, 801
3 As we age, levels decline, which may contribute to fatigue, brain fog, and slower recovery
Jane Smith, a nutrition expert, says, Vitamin B12 deficiency can show up in many ways
Laboratory Testing and Interpretation Healthcare providers utilize several laboratory tests to assess vitamin B12 status, each providing different insights into B12 adequacy and functional status
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