PLAT and neoplasm: In order to investigate the influence of BALB/c susbstrain backgrounds on two-stage skin carcinogenesis, this study therefore compared the skin tumor induction efficacy in the DMBA+TPA model, as well as evaluated anti-tumor effects in the DMBA+TPA model treated with cisplatin, by assessing the effects in BALB/cKorl stock and two commercial stocks (BALB/cA and BALB/cB).