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Discussion Significance of the study To our knowledge, this is the most comprehensive network meta-analysis comparing the efficacy of SL, IM, and oral routes of administration of vitamin B12 in patients with vitamin B12 deficiency
Some patients also experience more positive moods and reduced irritability after vitamin B12 injections
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In Japan, a deficiency is found in levels under 550 pg/ml (400pM)
How big that shift is, and whether it shows up reliably, leans heavily on the cell source and how many times the cells have been passed
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