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Colony forming assay of CL187 cells after SDR, FDR and CLDR. A. The inhibitory effects of irradiation on cell colony formation. The clones of the SDR, FDR and CLDR group after 0, 2, 4, 6 and 8Gy irradiation. Representative dishes after colony-forming assay are shown. B. The curves to show the plating efficiency of SDR, FDR and CLDR group at different dose points. C. Cell morphology of a clone before (upper) and after (lower) radiation.
