Fig. 4.
Reduction in CFU-S activity in bone marrow from STAT5A/5B-deleted mice.
Whole bone marrow was obtained from the hind legs of donor mice, 7.5 × 104 (day 12) or 2 × 105 (day 8) cells were injected into irradiated recipients, and colonies were counted on the indicated days after transfer. Absolute CFU-S values were calculated by using the total nucleated cell counts from the donor mice. (A) CFU-S day 12 (P < .001). (B) CFU-S day 8 (P < .001).