RT Journal Article SR Electronic T1 Variation in size of laryngoscope blades used in preterm newborns 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 F250 OP F250 DO 10.1136/archdischild-2013-305880 VO 99 IS 3 A1 Emily A Kieran A1 Colm P F O’ Donnell YR 2014 UL http://fn.bmj.com/content/99/3/F250.abstract AB