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Iwamoto, T

How Quickly Does the B12 Shot Work

Faletra F, Athanasakis E, Morgan A, et al

Among the 25 studies included in the qualitative synthesis (16 in the meta-analysis), 15 focused specifically on serum cobalamin changes (reported by baseline and post-treatment means and standard deviations in pg/mL) and 10 reported homocysteine outcomes (means and standard deviations in mmol/L)
14.7 (3.5) d
