Cells collected by FACS and stained with May-Grünwald-Giemsa and FISH results for CD34⁺subpopulations. (A), (B) CD34⁺Thy-1⁺cells; (C),(D) CD34⁺CD19⁺ cells; (E),(F) CD34⁺7⁺ cells; (G),(H) CD34⁺CD33⁺ cells. Three signals were observed only in the CD34⁺CD33⁺subpopulation cells.