RT Journal Article SR Electronic T1 Heart Disease in Children Attending School JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 277 OP 284 DO 10.1136/adc.3.18.277 VO 3 IS 18 A1 Dunstan Brewer YR 1928 UL http://adc.bmj.com/content/3/18/277.abstract AB