FIG. 4.
Survival of V79 cells as a function of intracellular activity of 125IdU in the absence (○) and presence (●) of 10% DMSO in the culture medium. The data for two independent experiments are shown in panels A and B. Least-squares fits of the data to a monoexponential function are shown. Standard deviations for individual data points are of the order of the dimensions of the symbols.