TY - JOUR T1 - The 1947 Year Book of Pediatrics JF - Archives of Disease in Childhood JO - Arch Dis Child SP - 67 LP - 67 DO - 10.1136/adc.23.113.67-b VL - 23 IS - 113 A2 - , Y1 - 1948/03/01 UR - http://adc.bmj.com/content/23/113/67.3.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -