RT Journal Article SR Electronic T1 Pre- and post-bronchodilator spirometric values and the degree of reversibility in patients with COPD JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 332 OP 332 DO 10.1183/09031936.04.00045404 VO 24 IS 2 A1 D.K.C. Lee YR 2004 UL http://erj.ersjournals.com/content/24/2/332.2.abstract AB