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. Author manuscript; available in PMC: 2010 Apr 1.
Published in final edited form as: Radiother Oncol. 2008 Nov 14;91(1):126–131. doi: 10.1016/j.radonc.2008.10.015

Figure 1.

Figure 1

The change in average RIF-1 tumor pO2 before and after a single or fractionated radiation. (a) 0 Gy, n = 18, (b) 10 Gy, n = 24–32, (c) 20 Gy, n = 18. n is the total number of EPR probes in the tumors. Arrows indicate the time of irradiation. * p < 0.05, compared with baseline tumor pO2 in the same group.