Comparison of survivin levels in bulk blasts, CD34⁺ AML cells, and CD34⁺38⁻ AML cells. (A) CD34⁺ and CD34⁺38⁻ cells were isolated from blasts of 37 AML patient samples. Survivin levels in bulk, CD34⁺ and CD34⁺38⁻ cells were determined by RPPA and compared. (B) For direct comparison of survivin levels in CD34⁺ cells and CD34⁺38⁻ cells of paired samples, a line graph is shown.