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. 2016 Sep 30;16:80. doi: 10.1186/s12871-016-0248-4

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© The Author(s). 2016

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. 3 — Summary of the averages of the hand strength changes in patients receiving 0.75 %, 0.5 % and 0.25 % ropivacaine. Measurements were made preoperatively (T0), in the PACU (T1), and 4 h (T2), 8 h (T3) and 24 h (T4) after the interscalene block. The values represent the mean ± sd