PT - JOURNAL ARTICLE ED - , TI - Corrections DP - 2007 Sep 01 TA - British Journal of General Practice PG - 748--748 VI - 57 IP - 542 4099 - http://bjgp.org/content/57/542/748.3.short 4100 - http://bjgp.org/content/57/542/748.3.full SO - Br J Gen Pract2007 Sep 01; 57