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. 2015 Jun 1;31(4):283–295. doi: 10.1177/0268355515589063

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© The Author(s) 2015

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 3.0 License (http://www.creativecommons.org/licenses/by-nc/3.0/) 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 page(https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 6. — Comparison of bubble size distributions at 40 s and 115 s for PEM (a) compared to PCF O₂:CO₂ (65:35) made by DSS (b) and Tessari (c) methods. Arrows highlight existence of large bubbles in the foam (n = 5).