RT Journal Article SR Electronic T1 Haem oxygenase‐1 expression is diminished in alveolar macrophages of patients with COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 652 OP 653 DO 10.1183/09031936.04.00127904 VO 23 IS 4 A1 D‐J. Slebos A1 H.A.M. Kerstjens A1 S.R. Rutgers A1 H.F. Kauffman A1 A.M.K. Choi A1 D.S. Postma YR 2004 UL http://erj.ersjournals.com/content/23/4/652.abstract AB