PT - JOURNAL ARTICLE AU - P.J. South TI - Letters DP - 1989 Feb 01 TA - The Journal of the Royal College of General Practitioners PG - 79--80 VI - 39 IP - 319 4099 - http://bjgp.org/content/39/319/79.3.short 4100 - http://bjgp.org/content/39/319/79.3.full SO - J R Coll Gen Pract1989 Feb 01; 39