RT Journal Article SR Electronic T1 Wide QRS arrhythmia: what is the diagnosis? JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 99 OP 158 DO 10.1136/emermed-2021-211254 VO 39 IS 2 A1 Oliveira, Cátia Costa A1 Rocha, Sérgia A1 Magalhães, Sónia YR 2022 UL http://emj.bmj.com/content/39/2/99.abstract AB