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Expression of phenotypic markers after transplantation with human cord blood cells cultured in the presence of HOXB4 and DL. In general, engraftment of human cells as evidenced by percent GFP+ (A), percent CD45+ and CD45+GFP+ (B), and percent CD34+CD45+ and CD34+GFP+ (C) is highest when HOXB4 and DL are used in conjunction. n = 5 mice per experimental treatment, *P < .05
