Article Text
Therapeutics
Review: limited evidence from 2 randomised controlled trials suggests that oral and intramuscular vitamin B12 have similar effectiveness for vitamin B12 deficiency
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Footnotes
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↵* Calculated from data in article.
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For correspondence: Dr J Vidal-Alaball, National Public Health Service for Wales, Wales, UK. Josep.vidal-alaball{at}nphs.wales.nhs.uk
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Source of funding: no external funding.