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. 2019 Jun 6;17:97. doi: 10.1186/s12957-019-1635-3

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© The Author(s). 2019

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 — Immunohistology of monocytes/macrophages and H&E staining of TILs in tumour central area (TCA) of HCC specimens. a High density of CD68⁺ TAMs. b Low density of CD68⁺ TAMs. c High density of CD163⁺ TAMs. d Low density of CD163⁺ TAMs. e High density of TILs. f Low density of TILs. Legend: left column, high density; right column, low density. Black arrows indicate monocytes/macrophages, white arrows TILs