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NCI Dictionary of Cancer Terms

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NCI Dictionary of Cancer Terms



erythropoiesis  listen  (eh-RITH-roh-poy-EE-sis)

  The formation of red blood cells in blood-forming tissue. In the early development of a fetus, erythropoiesis takes place in the yolk sac, spleen, and liver. After birth, all erythropoiesis occurs in the bone marrow.