RT Journal Article SR Electronic T1 Diagnosis of COPD before cardiac surgery JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1498 OP 1500 DO 10.1183/13993003.02339-2014 VO 46 IS 5 A1 Nicholas J. McKeon A1 Sjane N. Timmins A1 Heather Stewart A1 Stephanie T. Yerkovich A1 James L. McKeon YR 2015 UL http://erj.ersjournals.com/content/46/5/1498.abstract AB