RT Journal Article SR Electronic T1 Massive Pulmonary Embolism in a Boy Aged 9 JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 474 OP 476 DO 10.1136/adc.31.160.474 VO 31 IS 160 A1 Cashman, Maureen YR 1956 UL http://adc.bmj.com/content/31/160/474.abstract AB