B12 deficiency is often caused by veganism, Crohn's disease, or pernicious anemia. To treat vitamin B12 deficiency, take B12 supplements and consume more b12-rich foods. Vitamin B12 is a water ...
THE essential lesion in adult pernicious anemia is a lack of production of intrinsic factor that is invariably associated with chronic atrophic gastritis or gastric atrophy. The gastric lesion ...