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. 2015 Apr 6;3(4):e12338. doi: 10.14814/phy2.12338

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© 2015 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and The Physiological Society.

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Differences in slopes for ΔVO₂/ΔWR (upper left), ΔVO₂/ΔHR (upper right), ΔV_E/ΔVCO₂ (lower left) and ΔV_E/ΔVO₂ (lower right) calculated from 10-sec averaged data from the first 3 and 5 min for subjects with SCA and controls without SCA, respectively. Cutoff values for data points were based on the minimal test time that allowed for inclusion of the same number of data points for all subjects and controls.