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. 2017 Mar 21;5:13. doi: 10.1186/s40364-017-0091-x

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© The Author(s). 2017

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. 4 — Normal Quantile-Quantile Plot for length of stay. Legend. The plot compares the ordered values of length of stay (days) with quantiles of the normal distribution. If the data distribution matches the theoretical distribution, the points on the plot form a linear pattern