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. 2016 Feb 18;5:124. doi: 10.1186/s40064-016-1778-4

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© Usman and Hempel. 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.

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Fig. 2 — Bland–Altman plot of differences in 289 samples analysed by HPLC and PETINIA (Siemens)