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88 UchiyamaK.NakamuraM.OdaharaS.KoidoS.TajiriH.ShiraishiH.et al (2010)
In studies comparing the effect of oral and parenteral cobalamin, large doses (2 to 3 mg) of daily oral B12 appear equally effective to daily parental cobalamin 1 mg in rapidly restoring cobalamin stores and treating the signs of deficiency (215
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