RT Journal Article SR Electronic T1 Diamorphine or morphine for ischaemic cardiac chest pain JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 263 OP 264 DO 10.1136/emj.20.3.263-a VO 20 IS 3 A1 Halford, Steve A1 Simpson, H YR 2003 UL http://emj.bmj.com/content/20/3/263.2.abstract AB A short cut review was carried out to establish whether morphine is better than diamorphine at allieviating chest pain after an acute myocardial infarction. Altogether 66 papers were found using the reported search, of which one presented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results, and study weaknesses of this best paper are tabulated. A clinical bottom line is stated.