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(A) Distribution of sickle cell disease (SCD) patients by age and ethnicity. Data are shown as a column chart that reports, for each age group, the number of Africans and Caucasians patients of the cohort. (B) Distribution of SCD patients by genotype and therapy. Data are shown as a column chart that reports, for each genotype, the number of patients that received HC/ATR/CTR/NONE as their therapy regimen. ATR, acute transfusion; CTR, chronic transfusion; HC, hydroxycarbamide.
