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. 2016 Apr 27;27(1):157–166. doi: 10.1007/s00330-016-4360-0

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© The Author(s) 2016

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.

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Fig. 5 — Linear regression of VIP T1 time on LVEI in patients with PH. Correlation coefficient r is given together with 95 % confidence intervals (CIs) in parentheses; SD denotes the standard deviation of residuals from the regression line