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You might also have fewer cells in your stomach necessary to absorb B12 if youve had gastrointestinal or weight loss surgery
[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
S2CID 24548083
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Quick definition: DSIP (delta sleep-inducing peptide) is a small, naturally occurring neuropeptide first isolated in the 1970s and found in brain regions tied to sleep and stress regulation
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