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. 2019 Nov 6;19:1047. doi: 10.1186/s12885-019-6240-x

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© The Author(s). 2019

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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Forest plots depicting perioperative outcomes of LMLR versus OMLR. a. Operative time of LMLR versus OMLR; b. Blood loss in LMLR versus OMLR; c. Blood transfusion in LMLR versus OMLR; d. Resection margin in LMLR versus OMLR. Weighted mean differences (WMDs) and Odds ratios (ORs) are shown with 95% confidence intervals (CIs). LMLR, laparoscopic major liver resection; OMLR, open major liver resection