Fig. 3From: Difference in the relative biological effectiveness and DNA damage repair processes in response to proton beam therapy according to the positions of the spread out Bragg peakCorrelation between the RBE and the LET. The clear and filled circles show the results for positions #1 and #2 on the SOBP, respectively. The clear and filled squares show the results for positions #3 and #4 on the SOBP, respectively. Error bars indicate the standard error of the mean. A strong positive correlation between the RBE and LET was observed in both the OE21 and KYSE450 cellsBack to article page