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Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency PMC PDF] Sublingual vitamin B12 compared to intramuscular injection in patients with type 2 diabetes treated with metformin: a randomised trial. Semantic Scholar Vitamin B12 Injections vs. Supplements: Which Works Best? Comparison of Sublingual and Intramuscular Vitamin B12 in Children With Nutritional Vitamin B12 Deficiency Megaloblastic Anemia PMC
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