RT Journal Article SR Electronic T1 Inhaled steroids and COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 523 OP 524 DO 10.1183/09031936.00030508 VO 32 IS 2 A1 C. B. Cooper A1 M. Decramer YR 2008 UL http://erj.ersjournals.com/content/32/2/523.abstract AB