TY - JOUR T1 - Medical news JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 121 LP - 123 VL - 22 IS - 115 A2 - , Y1 - 1972/02/01 UR - http://bjgp.org/content/22/115/121.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -