PT - JOURNAL ARTICLE AU - M. Gaga TI - Fixed obstruction in severe asthma: not just a matter of time AID - 10.1183/09031936.04.00051804 DP - 2004 Jul 01 TA - European Respiratory Journal PG - 8--10 VI - 24 IP - 1 4099 - http://erj.ersjournals.com/content/24/1/8.short 4100 - http://erj.ersjournals.com/content/24/1/8.full SO - Eur Respir J2004 Jul 01; 24