RT Journal Article SR Electronic T1 Chronic Obstructive Pulmonary Disease: A Forgotten Killer JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 456 OP 456 VO 33 IS 2 A1 J. Vestbo YR 2009 UL http://erj.ersjournals.com/content/33/2/456.abstract AB