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. 2017 May 31;17:390. doi: 10.1186/s12885-017-3385-3

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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. 2 — Single cell mRNA analysis of pancreatic CTCs. a Unsupervised hierarchical cluster analysis and associated heat map of single CTCs (turquoise, yellow), leucocytes (violet), ASPC-1 cells (brown), PANC1 cells (light brown), and SDM103T2 cells (blue). Data are mean-centred and z-score adjusted. Green and red colours in the heat map represent high and low expression levels, respectively, relative to the mean expression of all analysed cells. b Principal component analysis of the single cell data. Each point represents a single cell in the analysis