PT - JOURNAL ARTICLE ED - , TI - Clinical Medicine AID - 10.7861/clinmedicine.5-6-667 DP - 2005 Nov 01 TA - Clinical Medicine PG - 667--669 VI - 5 IP - 6 4099 - http://www.rcpjournals.org/content/5/6/667.short 4100 - http://www.rcpjournals.org/content/5/6/667.full SO - Clin Med2005 Nov 01; 5