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Figure 1


Fig. 1. Comparison of the metastatic potential among the sarcoma cell populations. Cell populations K2, T15, A297 and A311 were subcutaneously implanted (one-million cells per transplant), into inbred Lewis rats. Primary tumours developed in all cases. The metastatic potential – the percentage of subjects developing metastases – was calculated for each cell population. The K2 cells had no metastatic potential, whereas T15, A297 and A311 cells had metastatic potentials of 38%, 90% and 100%, respectively. The metastases were found in the lungs. The numbers of rats used to test the K2, T15, A297 and A311 cells were 20, 24, 10 and 10, respectively; {chi}2 **P<0.01.