PT - JOURNAL ARTICLE AU - Marinker, M. TI - 2010. DP - 1981 Sep 01 TA - The Journal of the Royal College of General Practitioners PG - 540--546 VI - 31 IP - 230 4099 - http://bjgp.org/content/31/230/540.short 4100 - http://bjgp.org/content/31/230/540.full SO - J R Coll Gen Pract1981 Sep 01; 31