Total numbers of types of CFCs in bone marrow after administration of 5-FU.

Serial determinations of different types of hematopoietic colonies compared levels in wild-type C57/Bl6 mice (■) and c-mpl^−/− mice (▪). Mice were 6- to 8-weeks old at initiation of these experiments. The results of a single experiment representative of 3 other independent experiments are shown, except for the finding for CFU-MKs, which is the mean result of 2 experiments representative of 2 other independent experiments.