What is the site of erythropoietin production?

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Erythropoietin is primarily produced in the kidneys, specifically in the interstitial fibroblast-like cells in the renal cortex and outer medulla. Small amounts can also be produced in the liver and may have a minor role in erythropoiesis. The spleen plays a role in destroying old and damaged red blood cells. The bone marrow is the site of red blood cell production, but it does not directly produce erythropoietin.

What Is the Site of Erythropoietin Production