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. 2016 Feb 10;18:44. doi: 10.1186/s13075-016-0941-1

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© Compagno et al. 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. 1 — Flow cytometric analysis results. a Forward scatter analysis (FSC-A) and side scatter analysis (SSC-A) of polymorphonuclear cells (neutrophils in gate P5) in a healthy control. b Negative outcome of phagocytosis of necrotic cell material (PNC) assay in a healthy control, where only 1.7 % of gated neutrophils are positive for propidium iodide (PI) and CD66. c Positive outcome of PNC assay in a patient affected by systemic lupus erythematosus, where 38.9 % of gated neutrophils are positive for PI and CD66