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serum [DOI] [PMC free article] [PubMed] [Google Scholar] 2.Shanina E, Liao B, Smith RG https://b12injectionsmiami.com/wp-content/uploads/2024/02/methylcobalamin-vitamin-b12-injection_1-180x300-1.jpg Animal NDC 13985-400-04 Vitamin B12 Cyanocobalamin Size:1000 mcg/ml - 30 ml x 2

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