Absorption of Radioactive Vitamin B12 after Total Gastrectomy — Relation to Macrocytic Anemia and to the Site of Origin of Castle's Intrinsic Factor | NEJM
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If pernicious anemia patients cannot absorb B12 in the stomach, why would doctors prescribe high dose oral B12 along with the standard injections? - Quora
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Intrinsic factor - Wikipedia
Absorption mechanism of vitamin B12 (based on Ref. [20]). Cobalamin... | Download Scientific Diagram
Nutrients | Free Full-Text | Common Pitfalls in the Management of Patients with Micronutrient Deficiency: Keep in Mind the Stomach
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Is There a Carcinogenic Risk Attached to Vitamin B12 Deficient Diets and What Should We Do About It? Reviewing the Facts - Loedin - 2021 - Molecular Nutrition & Food Research - Wiley Online Library
Vitamin B12 absorption: Mammalian physiology and acquired and inherited disorders - ScienceDirect