PT - JOURNAL ARTICLE AU - Gray, Denis Pereira TI - Epidemiology and research in a general practice DP - 1982 Dec 01 TA - The Journal of the Royal College of General Practitioners PG - 724--725 VI - 32 IP - 245 4099 - http://bjgp.org/content/32/245/724.short 4100 - http://bjgp.org/content/32/245/724.full SO - J R Coll Gen Pract1982 Dec 01; 32