ArticleEuropean respiratory review : an official journal of the European Respiratory Society2016
"Exertional dyspnoea in COPD: the clinical utility of cardiopulmonary exercise testing." Denis E. O'Donnell, Amany F. Elbehairy, Azmy Faisal, Katherine A. Webb, J. Alberto Neder and Donald A. Mahler. Eur Respir Rev 2016; 25: 333-347.
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