CD34 and myelodysplastic syndrome: CD3 depletion of primary MDS BM samples, similar to CD34 enrichment, resulted in similar engraftment levels in PB and BM (Supplementary Figure 2,b, c), myeloid predominant grafts in MISTRG mice (Supplementary Figure 2d), and significant erythropoietic and megakaryocytic development (Supplementary Figure 2e, f).