glutathione peroxidase 1 liver Effect of knockout of peroxidase-1 (GPX1) and Frontiers | Research progress of
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Stern, Y., Barnes, C

Alternatively (and this is the approach I take for many patients), if you are experiencing significant symptomatic improvement then you can just continue to take the B12 shots indefinitely

Pellerin O, Garon P, Beyssen B, Raynaud A, Rossignol P, Jacquot C, Plouin PF, Sapoval M

Let the vial rest for 2 to 3 minutes
