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Figure 1


Fig. 1. Early replication arrest of HGPS and RD cells. The replication assay was performed with [methyl-3H] thymidine labeling as described in Materials and Methods. Symbols represent radioactivity values as follows: bullet, BJ cells; {circ}, HGPS cells; {blacktriangledown}, RD cells. The values were calculated from three independent experiments. Error bars represent standard deviations.