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Comparisons of gamma passing rates between the PRO and PO plans for SBRT and SRS treatments. (a) 3%/3 mm for 54 Gy SBRT; (b) 2%/2 mm for 54 Gy SBRT; (c) 3%/3 mm for 50 Gy SBRT; (d) 2%/2 mm for 50 Gy SBRT; (e) 5%/1 mm for SRS; (f) 3%/1 mm for SRS.
