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. 2017 Apr 20;12:74. doi: 10.1186/s13023-017-0626-0

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© The Author(s). 2017

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. 1 — Patient disposition. Definition of abbreviations: 6MWT: six-minute walk test; DL_CO: lung diffusing capacity for carbon monoxide; mPAP: mean pulmonary arterial pressure; PAP: pulmonary arterial pressure; PFT: pulmonary function tests; PH: pulmonary hypertension; RHC: right heart catheterisation