Mobilization and collection by apheresis. (A) PB CD34⁺ values were stratified by dose. A significant effect of Plx dose on PB CD34⁺ cell counts was observed by 2-way analysis of variance (P = .0068). Averages are shown with bars representing range. Total collected CD34⁺ cells (B) and predicted ideal collection yield based on an average PB CD34⁺ cell count during apheresis (C) for each dose are shown. Average ± standard error of the mean; (n = 3 at 180 µg/kg, n = 3 at 240 µg/kg).