Serum pepsinogen Ⅰ and the pepsinogen Ⅰ/Ⅱ ratio as a non-invasive predictive marker for autoimmune metaplastic atrophic gastritis
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Objective: Autoimmune metaplastic atrophic gastritis (AMAG) is a chronic inflammatory disease characterized by autoimmune destruction of parietal cells, causing profound gastric body and fundus atrophy. AMAG is frequently overloo... ...
