TY - JOUR T1 - Digest JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 219 LP - 220 VL - 39 IS - 322 A2 - , Y1 - 1989/05/01 UR - http://bjgp.org/content/39/322/219.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -