TY - JOUR T1 - Disease in Infancy and Childhood JF - The Journal of the College of General Practitioners JO - J Coll Gen Pract SP - 490 LP - 491 VL - 6 IS - 3 A2 - , Y1 - 1963/08/01 UR - http://bjgp.org/content/6/3/490.2.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -