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. 2015 Aug 26;16:48. doi: 10.1186/s12865-015-0113-0

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© Corkum et al. 2015

Open Access This 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 — Purity of immune cell subsets obtained from PBMC isolated by either Ficoll or CPT procedures. CD19+, CD8+, CD14+, and CD4+ cell subsets were sequentially separated from PBMC isolated by Ficoll and CPT protocols from the same donor and their purity was determined by flow cytometry using antibodies against surface markers specific for individual immune cell types. Filled histograms were given by appropriate immunoglobulin isotype controls. Gates for determining positivity were established using isotype controls so that ~99.0 % of events were negative