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. 2019 Jan 25;49(6):474–481. doi: 10.1007/s00595-019-1760-1

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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.

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Fig. 1 — Relationship between laparoscopic surgery rate and risk ratio for the occurrence of surgical site infection after laparoscopic colon surgery. Risk ratio is denoted by circles with 95% confidence interval. Left y-axis, risk ratio (open surgery: laparoscopic colon surgery). Laparoscopic rate for colon surgery is denoted by squares. Right axis, percentage of laparoscopic colon surgeries (laparoscopic colon surgeries/total colon surgeries)