A 63-year-old female complains of general weakness, a feeling of heaviness, compression in the epigastrium, postprandial fullness, nausea, belching after meals. These symptoms have been observed for about 15 years. Objectively: body temperature is 36,4°C, respiratory rate - 20/min, Ps - 88/min, blood pressure - 115/75 mm Hg. Skin and mucous membranes are pale. Blood test results: RBC - 2,0x1012/l, Hb - 100 g/l. Tests revealed parietal-cell antibodies. What is the most likely reason for the development of anemia in this patient?Production of antibodies to intrinsic factorDisruption of erythropoietin synthesisIncreased loss of ironImpaired iron absorptionDisruption of hemoglobin synthesis

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