PT - JOURNAL ARTICLE ED - Allan, Robert TI - Clinical Medicine June 2007 AID - 10.7861/clinmedicine.7-5-520 DP - 2007 Oct 01 TA - Clinical Medicine PG - 520--520 VI - 7 IP - 5 4099 - http://www.rcpjournals.org/content/7/5/520.1.short 4100 - http://www.rcpjournals.org/content/7/5/520.1.full SO - Clin Med2007 Oct 01; 7