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. 2018 May 15;13:78. doi: 10.1186/s13023-018-0790-x

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© The Author(s). 2018

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. 2 — Overall recurrence rate of pneumothorax after pleural covering surgery for patients with Birt-Hogg-Dubé syndrome: Kaplan-Meier graph estimating the recurrence probability after a total of 90 covering surgeries to prevent pneumothorax, as follows: 2.7% at 2.5 years, 7.1% at 5.0 years, and 32% at 7.5 years, with a median postoperative follow-up period of 48 (range: 6.7–94) months