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. 2015 Apr 28;10:843–852. doi: 10.2147/COPD.S80558

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© 2015 Camiciottoli et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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Intrathoracic tracheal collapsibility in males and females with COPD according to predominant airway disease and predominant emphysema.

Note: **P<0.001 among females.

Abbreviation: COPD, chronic obstructive pulmonary disease.