RT Journal Article SR Electronic T1 Exercise Testing in Children JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 670 OP 670 DO 10.1136/adc.50.8.670 VO 50 IS 8 YR 1975 UL http://adc.bmj.com/content/50/8/670.1.abstract AB