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. 2020 Apr 22;55(8):1984–1992. doi: 10.1002/ppul.24784

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© 2020 The Authors. Pediatric Pulmonology published by Wiley Periodicals LLC

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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A, Volume change in patient 009 airways: green color indicates dilation whereas red color indicates narrowing (due to mucus transportation). B, Detail of patient 009 distal (lower left lobe) airways before (red) and after (green) mHFCWO treatment; the arrows indicate mucus shift. C, Detail of patient 009 central airways before (red) and after (green) mHFCWO treatment; the arrow indicates mucus shift. HFCWO, high‐frequency chest wall oscillation [Color figure can be viewed at wileyonlinelibrary.com]