PT - JOURNAL ARTICLE ED - , TI - Number 15 Princes Gate DP - 1977 Nov 01 TA - The Journal of the Royal College of General Practitioners PG - 645--646 VI - 27 IP - 184 4099 - http://bjgp.org/content/27/184/645.2.short 4100 - http://bjgp.org/content/27/184/645.2.full SO - J R Coll Gen Pract1977 Nov 01; 27