PT - JOURNAL ARTICLE AU - Ian D Pavord AU - Michael DL Morgan AU - Andrew J Wardlaw TI - Duplicate publication AID - 10.7861/clinmedicine.2-2-167a DP - 2002 Mar 01 TA - Clinical Medicine PG - 167--167 VI - 2 IP - 2 4099 - http://www.rcpjournals.org/content/2/2/167.2.short 4100 - http://www.rcpjournals.org/content/2/2/167.2.full SO - Clin Med2002 Mar 01; 2