RT Journal Article SR Electronic T1 “Formoterol in patients with chronic obstructive pulmonary disease: a randomized, controlled, 3‐month trial”. R. Aalbers, J. Ayres, V. Backer, M. Decramer, P.A. Lier, P. Magyar, J. Malolepszy, R. Ruffin, G.W. Sybrecht. Eur Respir J 2002; 19: 936–943 JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 245 OP 245 DO 10.1183/09031936.02.0024502 VO 20 IS 1 YR 2002 UL http://erj.ersjournals.com/content/20/1/245.abstract AB