RT Journal Article SR Electronic T1 Inhaled corticosteroids in COPD: the case against JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 13 OP 16 DO 10.1183/09031936.00190908 VO 34 IS 1 A1 S. Suissa A1 P. J. Barnes YR 2009 UL http://erj.ersjournals.com/content/34/1/13.abstract AB