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Major and minor erythroid responses during the 13-week test period by IPSS classification. The percentage of patients achieving an erythroid response during the 13-week test period is shown for patients with Low and Intermediate-1 (Int-1) IPSS classifications, and stratified by prior ESA treatment status. IPSS, International Prognostic Scoring System; ESA, erythropoiesis-stimulating agent; CL, confidence limit.
