RT Journal Article SR Electronic T1 Treatment of COPD and the TOnado trial: a tempest in a teapot? JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 869 OP 871 DO 10.1183/09031936.00027915 VO 45 IS 4 A1 Klaus F. Rabe YR 2015 UL http://erj.ersjournals.com/content/45/4/869.abstract AB