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. 2015 Jun 30;22:1156–1163. doi: 10.1245/s10434-015-4676-z

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© The Author(s) 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Unadjusted Kaplan–Meier survival plots. a Patients in PTBD and EBD-only groups had comparable survival (P = 0.26). b Stratifying patients in PTBD group between those who underwent PTBD only and those who underwent PTBD plus EBD did not reveal difference (P = 0.45)