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Figure 6: (a) Maximum dose falloff (%) from the PTV surface and (b) maximum dose falloff gradient (1/mm) as a function of PTV volumes in the patient plans. (c) Mean dose falloff (%) from the PTV surface and (d) mean dose falloff gradient (1/mm) as a function of PTV volumes in the patient plans

Figure 6: (a) Maximum dose falloff (%) from the PTV surface and (b) maximum dose falloff gradient (1/mm) as a function of PTV volumes in the patient plans. (c) Mean dose falloff (%) from the PTV surface and (d) mean dose falloff gradient (1/mm) as a function of PTV volumes in the patient plans