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. 2014 Aug 10;11:36. doi: 10.1186/1742-4682-11-36

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Copyright © 2014 Deng et al.; licensee 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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The gross appearance of the lung in the four groups. A. The Sham group showed pink lung with a little congestion (white arrow). B. The Ischemia group showed a reddish-gray lung with some collapsed appearance (white arrow). C. The Reperfusion group showed a reddish lung with congested and swollen appearance (white arrow) with some dark red appearance indicating bleeding. D. The Inhaled NO group showed a somewhat similar but less congested and swollen lung appearance as the reperfusion group (white arrow).