PT - JOURNAL ARTICLE ED - , TI - Prevent DP - 1973 Feb 01 TA - The Journal of the Royal College of General Practitioners PG - 80--80 VI - 23 IP - 127 4099 - http://bjgp.org/content/23/127/80.short 4100 - http://bjgp.org/content/23/127/80.full SO - J R Coll Gen Pract1973 Feb 01; 23