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. 2013 Jun 18;8:145. doi: 10.1186/1748-717X-8-145

Figure 2.

Figure 2

Dose difference plots. Distribution of the dose difference obtained by subtracting the dose distribution of the IMPT2mm-plan from the dose distributions of the IMPT0mm- and the IMPT5mm-plans. (a1) Dose difference IMPT0mm-IMPT2mm for patient 1. (a2) Dose difference IMPT5mm-IMPT2mm for patient 1. The corresponding dose difference plots for patient 7 are shown in (b1) and (b2), respectively.