RT Journal Article SR Electronic T1 On the edge of the film… JF Archives of disease in childhood - Education & practice edition JO Arch Dis Child Educ Pract Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 15 OP 16 DO 10.1136/archdischild-2013-305044 VO 99 IS 1 A1 Helen Williams YR 2014 UL http://ep.bmj.com/content/99/1/15.abstract AB