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Fig. 2 | BMC Cancer

Fig. 2

From: Perineural invasion as a prognostic factor for intrahepatic cholangiocarcinoma after curative resection and a potential indication for postoperative chemotherapy: a retrospective cohort study

Fig. 2

Postoperative chemotherapy showed significant survival improvement on RFS (a) and OS (b) in the whole cohort of patients, and on RFS (c) and OS (d) in the patients without PNI. However, it did not showed any improvement on RFS (e) or OS (f) in the patients with PNI. PNI, perineural invasion; RFS, recurrence free survival; OS, overall survival

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BMC Cancer

ISSN: 1471-2407

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