RT Journal Article SR Electronic T1 Opiates should be avoided in acute decompensated heart failure JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 230 OP 231 DO 10.1136/emj.2008.064576 VO 26 IS 3 A1 G N Cattermole A1 C A Graham YR 2009 UL http://emj.bmj.com/content/26/3/230.4.abstract AB