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Local recurrence (LR) rate for total cases treated with SBRT and repeated cases treated with SBRT. (a) Three- and 5-year LR rates for total cases were 2.5% (95% CI, 0.4–3.8%) and 3.4% (95% CI, 1.3–6.9%), respectively. (b) Only one case showed LR within 1 year after second SBRT.
