Changes of leukocytes (•) and neutrophils (○) in G-CSF–treated marmosets (A). Changes of CFU-GM (•) (B), BFU-E (•), and CFU-Mix (○) (C) in peripheral blood of G-CSF–treated marmosets. First, 10 μg/kg/d of human G-CSF was administered subcutaneously for 5 days. The maximal numbers of CFU-GM, BFU-E, and CFU-Mix in peripheral blood were obtained on day 8 and were approximately 21-fold, 25-fold, and 13-fold, respectively, of the value obtained in the unstimulated state. The data shown were obtained from four animals and are expressed as the mean ± SEM.