Fig. 5.
Clone sizes obtained in 10-day SFM cultures of single, initially quiescent (G0) CD34+ cells.
Results from a representative experiment (patient 4) in the presence (▪) or absence (■) of added growth factors are shown. The numbers on the abscissa indicate the minimum number of cells per clone for clones whose sizes range up to the next number shown. The difference in average clone size for clones generated in the presence and absence of added growth factors was significant (P < .001).
