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Inadequate secretion of intrinsic factor, resulting from lesions that destroy the gastric mucosa (which can be caused by ingestion of corrosives, extensive tumors, and conditions associated with gastric atrophy, such as multiple sclerosis, certain endocrine disorders, iron deficiency, and subtotal gastrectomy) Structural lesions leading to vitamin B 12 deficiency, including regional ileitis, ileal reactions, and malignancies Competition for vitamin B 12 by intestinal parasites or bacteria
doi: 10.1016/j.jaut.2015.09.006 27 Al-HeetyRAAl-HadithiHSTurkiKM
Store reconstituted solutions refrigerated, avoid repeated freezethaw cycles, and use within labdefined time windows
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