Fig. 3From: Comparative study of the effects of different radiation qualities on normal human breast cellsClonogenic survival of MCF10A cells after HDR X-rays. Data from three independent experiments are presented as mean values ± SEM of the survival fraction. The significances refer to the 0 Gy control of X-rays HDR. Asterisks illustrate significances: *p < 0.05, **p < 0.01, ***p < 0.001. (HDR, high dose rate)Back to article page