A) Separate curves are shown for relative growth of sham irradiated tumors (n=4; ●) and those irradiated with single dose 30 Gy X-rays, while rats breathed air (n=5; □) or oxygen (n=5; ▲). There was no separation based on tumor size at time of irradiation.
B) Growth curves for the 14 individual tumors. ● sham irradiation, □ 30 Gy while breathing air, or ▲ oxygen. Absolute tumor sizes are shown relative to irradiation on day 0.