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Kaplan–Meier analysis of progression-free survival in patients who underwent palliative chemotherapy. The median progression-free survival of EH, LV, and BOTH groups were 4.9 (95% confidence interval [CI], 3.5–6.3), 3.2 (95% CI, 2.6–3.8), and 2.4 (95% CI, 1.9–2.9) months, respectively (P < 0.001). EH, extrahepatic metastasis alone; LV, hepatic metastasis alone; BOTH, both hepatic and extrahepatic metastasis.
