Hematologic analysis of NKT-cell–deficient mice. (A) Complete blood counts in WT and NKTdef mice are shown (n = 10). (B) Bone marrow cellularity in WT and NKTdef mice (n = 13) as assessed by the number of nucleated cells flushed from hind limbs. (C) Relative frequency of bone marrow precursors in WT and NKTdef mice (n = 13) as assessed by staining with lineage-specific mAb and flow cytometry (*P < .05; **P < .001 by unpaired Student t test).