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. 2014 Dec 8;14:196. doi: 10.1186/1471-2466-14-196

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© Nishikiori et al.; licensee BioMed Central. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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Immunostaining of blood and lymphatic vessels in lung biopsies from idiopathic pulmonary fibrosis (IPF) patients. (A) The capillary vessels were extremely developed, especially along the air space (red: CD34, brown: SP-A). (B) On the other hand, lymphatic vessels were localized at the center of the stroma (red: D2-40, brown: SP-A).