Seeding efficiency of human CD34⁺ UCB cells in total BM of NOD/SCID mice: comparison of flow cytometric analysis with CFC and CAFC data. The data are depicted as median and range of 3 separate experiments for the CFC and CAFC assays; 6 experiments for the 3.5-Gy irradiated NOD/SCID mice, and 7 experiments for the 9-Gy irradiated NOD/SCID mice. *, Significantly different from CAFC wk 6.