RT Journal Article SR Electronic T1 Fantoms JF Archives of Disease in Childhood - Fetal and Neonatal Edition JO Arch Dis Child Fetal Neonatal Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP F235 OP F235 DO 10.1136/fn.87.3.F235 VO 87 IS 3 A1 Ben Stenson YR 2002 UL http://fn.bmj.com/content/87/3/F235.abstract AB