PT - JOURNAL ARTICLE AU - Gerard Cathal Millen AU - Christina Yap TI - Adaptive trial designs: what are multiarm, multistage trials? AID - 10.1136/archdischild-2019-317826 DP - 2019 Oct 29 TA - Archives of disease in childhood - Education & practice edition PG - edpract-2019-317826 4099 - http://ep.bmj.com/content/early/2020/06/22/archdischild-2019-317826.short 4100 - http://ep.bmj.com/content/early/2020/06/22/archdischild-2019-317826.full