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Dove Press, International Journal of Chronic Obstructive Pulmonary Disease, (Volume 12), p. 3567-3577

DOI: 10.2147/copd.s150280

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Improved spirometric detection of small airway narrowing: concavity in the expiratory flow–volume curve in people aged over 40 years

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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