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. 2020 Nov 25;10(4):2045894020972273. doi: 10.1177/2045894020972273

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© The Author(s) 2020

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Fig. 1. — Sub-maximum CPET parameters between patients with isolated post-capillary pulmonary hypertension (Ipc-PH) and combined pre- and post-capillary pulmonary hypertension (Cpc-PH). Data presented as mean ± SD.

VE/VCO₂: ventilatory efficiency; ETCO₂: end tidal carbon dioxide; delta ETCO₂: change in ETCO₂ from rest to end exercise; O₂: oxygen; GX_CAP: gas exchange derived measure of pulmonary vascular capacitance.