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Hemoglobin levels in two groups had been maintained appropriately at each target level. Values shown are medians with interquartile ranges. In the high-hemoglobin group, the hemoglobin level sharply increased after randomization and reached 11 g/dl at 16 weeks. Thereafter, it was maintained at >11 g/dl throughout the study period. In the low-hemoglobin group, the hemoglobin level was maintained at about 10 g/dl from 8 weeks after randomization to the end of the study.
