Iron deficiency anemia became the major cause of the anemia after the gastrectomy, and the megaloblastic the anemia with the vitamin B12 the deficiency was rare. In this study, the anemia was relatively frequent after the gastrectomy for early gastric cancer. Anemia was also detected shortly after the surgery and can increased during the follow-up period.
Iron deficiency anemia is the common type of the anemia — a condition in which the blood lacks of adequate healthy red blood cells. Red blood cells that carry oxygen to the body's and tissues. As the name that implies, iron deficiency anemia is cause due to insufficient iron
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