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. 2014 Dec 12;15:486. doi: 10.1186/1745-6215-15-486

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© Sood 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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Boxplots of timeline of events prior to initiation of study aerosol in control and combined IPGE ₁ groups (low-dose and high-dose IPGE ₁ ). INO, inhaled nitric oxide; OI, oxygenation index. (a) Age at INO start (hours; (b) Age at randomization (hours); (c) Interval from 1st OI > 15 and start of study aerosol (hours); (d) Interval from randomization to start of study aerosol (hours).