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what size syringe for b12 injections injection needle gauge needle b12 injection What Size to Use for B12 A Guide to the Best
Description
Routine serum B12 measurement is not useful once on injection therapy

Wikipedia / biochemical sources

doi: 10.2174/1389450053174596
The 5-day interval is what matters, not the calendar day

On day 5, a maximum serum B12 concentration of 496 34.4 pg/mL was recorded in the Sucrosomial B12 group compared to 304 49.4 pg/mL in the conventional B-SUB B12 group (Figure 4 boxplots, bottom)

[81] Previous reports have suggested that the RIDA method can detect higher concentrations of vitamin B 12 in foods compared to the microbiological assay method
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