Survival of SA-1 sarcoma (A), TBLCI2 sarcoma (B) and TBLCI2Pt sarcoma cells (C) after treatment with cisplatin (CDDP) or compound 2 or cisplatin electrochemotherapy (ECT CDDP) or compound 2 electrochemotherapy (ECT Compound 2), determined using a clonogenic assay. Data are presented as the arithmetic mean and standard error of the mean (AM±SE) of triplicates pooled from three independent experiments. The survival of cells treated with electrochemotherapy was normalized to the survival of cells treated with electric pulses alone. The survival of SA-1, TBLCl2 and TBLCl2Pt cells treated with electric pulses alone was 0.96 ± 0.05, 0.93 ± 0.09 and 0.92 ± 0.10, respectively.