PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.3399/bjgp09X454223 DP - 2009 Sep 01 TA - British Journal of General Practice PG - 694--694 VI - 59 IP - 566 4099 - http://bjgp.org/content/59/566/694.3.short 4100 - http://bjgp.org/content/59/566/694.3.full SO - Br J Gen Pract2009 Sep 01; 59