Changes in WBCs (- - - - -) and in circulating clonogenic progenitors (per milliliter of blood) in animals treated with CHO-FL and G-CSF combinations. (Solid bars on left top of each panel correspond to duration of treatment.) Animal C was treated with CHO-FL for 12 days and with G-CSF from day 7 to 12. Panel D shows data from eight animals treated with G-CSF for 5 days (for values representing < 3 animals have no standard deviation [SD]). Note the amptitude of mobilization in animals A, B, and C compared with single treatments with FL (Fig 1; please note difference in scale) or G-CSF (D).