TY - JOUR T1 - Medical news JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 625 LP - 626 VL - 31 IS - 231 A2 - , Y1 - 1981/10/01 UR - http://bjgp.org/content/31/231/625.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -