TY - JOUR T1 - Medical news JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 280 LP - 282 VL - 23 IS - 129 A2 - , Y1 - 1973/04/01 UR - http://bjgp.org/content/23/129/280.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -