RT Journal Article SR Electronic T1 “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. JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 513 OP 513 DO 10.1183/16000617.5054-2016 VO 25 IS 142 YR 2016 UL http://err.ersjournals.com/content/25/142/513.abstract AB