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. 2018 Jul 23;8(4):2045894018793983. doi: 10.1177/2045894018793983

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© The Author(s) 2018

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Fig. 2. — (a) Marked intimal thickening (arrow) due to cellular intimal proliferation in a pulmonary artery (H&E, ×100). (b) Duplicated internal elastic lamina (star; orcein staining of elastic fibers, ×100).