PT - JOURNAL ARTICLE AU - J A Walker-Smith TI - With commentary AID - 10.1136/adc.55.12.928 DP - 1980 Dec 01 TA - Archives of Disease in Childhood PG - 928--928 VI - 55 IP - 12 4099 - http://adc.bmj.com/content/55/12/928.short 4100 - http://adc.bmj.com/content/55/12/928.full SO - Arch Dis Child1980 Dec 01; 55