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. 2018 Jul 10;16(3):3593–3602. doi: 10.3892/ol.2018.9108

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Copyright: © Yang et al.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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Figure 3. — Postoperative OS and DFS curves for 36 pairs of patients matched using PSM analysis. BDI was verified as a critical prognostic factor associated with both poor DFS and OS in this cohort. DFS, disease-free survival; OS, overall survival; BDI, bile duct invasion; PSM, propensity score matching.