PT - JOURNAL ARTICLE AU - Hart, Julian Tudor TI - ESSENTIAL HYPERTENSION DP - 1980 Aug 01 TA - The Journal of the Royal College of General Practitioners PG - 503--504 VI - 30 IP - 217 4099 - http://bjgp.org/content/30/217/503.4.short 4100 - http://bjgp.org/content/30/217/503.4.full SO - J R Coll Gen Pract1980 Aug 01; 30