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At Onus, Methylcobalamin is our most commonly used form of B12 for injection Size:1000 mcg/ml - 30 ml x 4 rx vitamins Vedco Inc. - VITAMIN B-12 1000MCG INJECTION https://cdn.nwe.io/files/x/0f/e3/0e188b38af5f19902ecff484151b.jpg

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