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Kaplan-Meier curves for (A) overall survival (OS) and (B) progression-free survival (PFS) stratified by the amount of hepatic tumor debulked. The P values were obtained using Cox regression. There was a difference in (A) OS comparing <70% to 70%–90% (P < .01) but not 70%–90% to >90% (P=. 6). There was a significant difference in (B) PFS comparing < 70% to 70%–90% (P < .01) and 70%–90% to >90% (P < .01).
