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Current British Society of Gastroenterology guidance suggests considering a baseline upper GI endoscopy with biopsies in adults aged 50 or over with confirmed pernicious anaemia to document autoimmune gastritis
A peer-reviewed study by the National Institutes of Health shows that B12 absorption depends on the presence of intrinsic factors in the stomach
Nature 455 , 674678 (2008)
When mitochondrial function is compromised, the efficiency of ATP production declines, leading to energy deficits in both cardiovascular and neural tissues
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