PT - JOURNAL ARTICLE AU - Verheij, T. AU - Teepe, J. AU - Grigoryan, L. TI - From the authors: AID - 10.1183/09031936.00171410 DP - 2011 Mar 01 TA - European Respiratory Journal PG - 725--725 VI - 37 IP - 3 4099 - http://erj.ersjournals.com/content/37/3/725.short 4100 - http://erj.ersjournals.com/content/37/3/725.full SO - Eur Respir J2011 Mar 01; 37