PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.3399/bjgp09X473259 DP - 2009 Dec 01 TA - British Journal of General Practice PG - 946--946 VI - 59 IP - 569 4099 - http://bjgp.org/content/59/569/946.2.short 4100 - http://bjgp.org/content/59/569/946.2.full SO - Br J Gen Pract2009 Dec 01; 59