Fig. 3From: Role of circulating endothelial progenitors in responsiveness to erythropoiesis-stimulating agents in hemodialysis patientsDistribution of ESA doses according to each ESA type. Median and interquartile ranges of ESA doses according to ESA type are shown. One microgram darbepoetin alpha (DA) was regarded as equivalent to 250 IU epoetin and to 1.2 µg epoetin beta pegol (continuous erythropoietin receptor activator [CERA]). *p < 0.001Back to article page