PT - JOURNAL ARTICLE ED - , AID - 10.1183/09031936.50181209 DP - 2011 Mar 01 TA - European Respiratory Journal PG - 727--727 VI - 37 IP - 3 4099 - http://erj.ersjournals.com/content/37/3/727.short 4100 - http://erj.ersjournals.com/content/37/3/727.full SO - Eur Respir J2011 Mar 01; 37