Fig. 1From: CRISPR-mediated gene modification of hematopoietic stem cells with beta-thalassemia IVS-1-110 mutationFunctional assay of peripheral blood patient-derived hematopoietic stem cells (HSCs) under an inverted microscope at day 17 of culture differentiated into erythroid precursors (BFU-E colonies in semisolid cultures) under the effect of erythropoietin, trypan blue staining (high-power magnification × 40)Back to article page