Fig. 6

A, Kaplan–Meier curve of clinical PFS of preexisting PTE in primary GKRS group (p = 0.003). B, Kaplan–Meier curve of clinical PFS of max tumor diameter ≥ 50 mm VS < 50 mm in postoperative GKRS group (p = 0.027). C, Kaplan–Meier curve of clinical PFS of max tumor diameter ≥ 50 mm VS < 50 mm in combined group (p = 0.007)