RT Journal Article SR Electronic T1 Clinician’s Guide to Chronic Obstructive Pulmonary Disease JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 869 OP 869 VO 27 IS 4 A1 N.C. Thomson YR 2006 UL http://erj.ersjournals.com/content/27/4/869.abstract AB