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Imaging 48 , 28232833 (2021)
[55] If nervous system damage is present and blood testing is inconclusive, a lumbar puncture may be carried out to measure cerebrospinal fluid B 12 levels
It can also reflect iron deficiency, blood sugar instability, hormone shifts, nervous system dysregulation, or chronic stress
It supports the function of immune cells involved in pathogen recognition, inflammation regulation, and tissue repair
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