CD34 and acute lymphoblastic leukemia: Different numbers (5×102 to 5×105 cells/mouse) of CD7+/CD34+ and CD7+/CD34− cells sorted from the blood of newly diagnosed human T-ALL (T-ALL1-6, Supplementary Table S1) were transplanted into NOD/SCID/γc−/− (NSG) mice based on previous results obtained with these samples [9, 12].