TY - JOUR T1 - DIAGNOSTIC CERTAINTY JF - The Journal of the Royal College of General Practitioners JO - J R Coll Gen Pract SP - 770 LP - 770 VL - 22 IS - 124 AU - D. C. Morrell Y1 - 1972/11/01 UR - http://bjgp.org/content/22/124/770.1.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -