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 172 OP 172 DO 10.1136/emj.2010.097436 VO 28 IS 2 A1 Matthew Thomas YR 2011 UL http://emj.bmj.com/content/28/2/172.abstract AB