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. 2019 Apr 8;19:89. doi: 10.1186/s12872-019-1052-0

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© The Author(s). 2019

Open AccessThis 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. 3 — a The Ratio of SB deterioration. The P-values of the incidence of immediate SB deterioration between the 2 groups (pre-PSM and post-PSM). b The Ratio of rescue FKBI application. The P-values of the rescue FKBI application between the 2 groups (pre-PSM and post-PSM). PSM: propensity-matched analysis. FKBI: final kissing balloon inflation. * means P < 0.05