RT Journal Article SR Electronic T1 Is return of spontaneous circulation always the best outcome in cardiac arrest? JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP emj.2010.097436 DO 10.1136/emj.2010.097436 A1 Matthew Thomas YR 2010 UL http://emj.bmj.com/content/early/2010/10/17/emj.2010.097436.abstract AB