PT - JOURNAL ARTICLE AU - S.E. Wenzel TI - A different disease, many diseases or mild asthma gone bad? Challenges of severe asthma AID - 10.1183/09031936.03.00027403 DP - 2003 Sep 01 TA - European Respiratory Journal PG - 397--398 VI - 22 IP - 3 4099 - http://erj.ersjournals.com/content/22/3/397.short 4100 - http://erj.ersjournals.com/content/22/3/397.full SO - Eur Respir J2003 Sep 01; 22