(Top panel) Survival fraction as a function of the rescaled radiation dose for different tissues: intestinal stem cells, Chinese hamster cells, human melanoma, human kidney cells, and cultured mammalian cells under different irradiation conditions. Various shapes represent tissues, whereas each color highlights different radiation conditions. Five solid lines represent fitting to experimental data. (Bottom panel) Collapsed survival fractions for different tissues with : intestinal stem cells , Chinese hamster cells , human melanoma , human kidney cells , and cultured mammalian cells under different irradiation conditions. Further details can be seen in [45].