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Background Erythropoiesis stimulating agent (ESA)-resistant anemia is common in chronic kidney disease (CKD). Objectives To evaluate the determinants of severity of ESA resistance in patients with CKD and primary ESA-resistance. Design Secondary analysis of a randomized controlled trial (the Handling Erythropoietin Resistance with Oxpentifylline, HERO) Setting and patients 53 adult patients...
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