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Retrospective Study
Copyright: ©Author(s) 2026.
World J Clin Oncol. Apr 24, 2026; 17(4): 115851
Published online Apr 24, 2026. doi: 10.5306/wjco.v17.i4.115851
Figure 5
Figure 5 Schematic summary figure showing how the statistical process control parameters (control limits, tolerance limits, and action limits) progressively decline across stricter gamma criteria (3%/3 mm → 2%/2 mm). SPC: Statistical process control; CL: Control limits.


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