Fig. 1.
Isolation of CD34+ CD19+ and CD34+ CD19− populations by cell sorting. Low density mononuclear cells from adult BM were labeled with anti-CD34–FITC and anti-CD19–PE, and cells within the lymphoid blast window were analyzed before or immediately after double cell sorting on a FACStar Plus flow cytometer. The purity of the sorted cells in each fraction was at least 99%.