Hematopoietic cell characterization at d30/36 post-irradiation. Male and female JDO mice were exposed to 9.0 Gy. At d30 post-TBI, PB was assessed for WBC (a), NE (b), LY, (c), RBC (d), and PLT (e), and at d36 BM was harvested, separated by density gradient centrifugation and assessed for total low-density cells (LDBM, f), number of KSL cells per mouse (g), CD150+ cells as a percentage of KSL (h), and number of KSL150+ cells per mouse (i). n = 10–35 for d30 CBC; n = 4 for d36 BM phenotyping; data are mean ± SEM; *p≤0.05.