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Table 2 Patterns of failure

From: High-dose stereotactic body radiotherapy using CyberKnife® for stage I peripheral lung cancer: a single-center retrospective study

T factor (n) Local recurrence Regional recurrence Distant metastasis
T1a/b (61) 1 1 4
T1c/T2a (35) 4 5 7
Total (96) 5 6 11