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. 2015 Aug 12;15:88. doi: 10.1186/s12890-015-0085-0

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© Akasaka et al. 2015

Open Access This 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. 4 — a Cumulative rate of worsening estimated using the Kaplan-Meier method. b Comparison of the cumulative worsening rate between the high-dose (full-line) and low-dose group (dotted-line). c Duration of corticosteroid administration (bar) and antibiotic administration (whisker)