RT Journal Article SR Electronic T1 EPIDEMIOLOGY IN GENERAL PRACTICE JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 131 OP 131 VO 39 IS 320 A1 Stanley, Ian YR 1989 UL http://bjgp.org/content/39/320/131.3.abstract AB