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Do not confuse tiny air bubbles (which are normal after drawing from the vial) with particles
HPLC results and mass spectrometry results measure different things
Some individuals may struggle to absorb B12 through diet alone especially those with certain dietary restrictions or medical conditions
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There has been a change in the strength of the B12 ampoules
Species Several ASVs mapped with high confidence directly to a specific species (Supplementary Table S4), with considerably more species mapped using the BLASTn method compared to the BLCA method
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