RT Journal Article SR Electronic T1 When a study doesn’t show what you hoped for JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP emermed-2021-212089 DO 10.1136/emermed-2021-212089 A1 Ellen J Weber YR 2021 UL http://emj.bmj.com/content/early/2021/11/17/emermed-2021-212089.abstract AB