RT Journal Article SR Electronic T1 Adaptive trial designs: what are multiarm, multistage trials? 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 edpract-2019-317826 DO 10.1136/archdischild-2019-317826 A1 Gerard Cathal Millen A1 Christina Yap YR 2019 UL http://ep.bmj.com/content/early/2020/06/22/archdischild-2019-317826.abstract AB