PT - JOURNAL ARTICLE ED - , TI - Erratum AID - 10.7861/clinmedicine.9-5-495 DP - 2009 Oct 01 TA - Clinical Medicine PG - 495--495 VI - 9 IP - 5 4099 - http://www.rcpjournals.org/content/9/5/495.short 4100 - http://www.rcpjournals.org/content/9/5/495.full SO - Clin Med2009 Oct 01; 9