Figure 1From: Microarray analysis of DNA damage repair gene expression profiles in cervical cancer cells radioresistant to 252Cf neutron and X-rays Survival fraction curves of HeLa, HeLaNR and HeLaXR cells. The radiation survival fraction curve derived from colony formation assays of HeLa, HeLaNR, and HeLaXR cells after different doses of 252Cf neutron rays and X-rays. HeLaNR and HeLaXR cells are more radioresistant to IR than parental cells.Back to article page