Graph showing Tumor weight versus days since subcutaneous implant of the SN12C tumor in nu/nu NCr mice. There were four groups in the study. Group 1: 1x10^7 cells were implanted SC. 100% Take Rate. Group 2: 7.5x10^6 cells were implanted SC. 100% Take Rate. Group 3: 5x10^6 cells were implanted SC. 100% Take Rate. Group 4: 2.5x10^6 cells were implanted SC. 100% Take Rate. Notes: Eight animals were assigned to each group. Starting at Day 32, animals in various groups that had reached endpoint were removed from the study resulting in fluctuations in the growth curves at subsequent time points. Growth curves were no longer calculated when <70% remained in the group.