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is b12 injections as good as the pills vs Pills: Richmond's Complete Guide Vitamin B12 Injections | When
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If you suspect that you are B12 deficient or think that you might benefit from a course of B12 injections, then dont hesitate

If you worry are too much about the discomfort, then a numbing agent will be applied to avoid minor pain during the injection

Supplementary Information Additional file 2: Supplementary Table S1
