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Photon and proton dose volume histograms for a representative patient (age 16, index 13) over the age of 15. Proton and photon DVHs are indicated by dashed and solid lines, respectively. The absolute dose values shown on the horizontal axis of 250, 500, 750, 1000, 1250, 1500, 1750, 2000, 2250, and 2750 cGy correspond to percent dose values of 11, 21, 32, 43, 53, 64, 75, 85, 96, 107, and 118%, respectively.
