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. 2017 Apr 3;18:122. doi: 10.1186/s12882-017-0532-7

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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 — Urinary albumin concentrations at different time points in controls and paraquat treated rats. Note that albumin concentration (y axis) values are actual raw values (not logarithmic values). Y axis is formatted on log scale to improve the visibility of data points. An increase urinary albumin concentration was observed as histopathology grades increased in paraquat treated rats. Each symbols indicate biomarker concentrations from individual rats at specific paraquat dose levels. The histopathology grades [28] are displayed on a scale of 0 (normal) to 7 (severe) [grade 1 (white), grade 2 (yellow), grade 3 (blue), grade 4 (green), grade 5 (red), grade 6 (purple) and grade 7 (black)]