RT Journal Article SR Electronic T1 Case of the month: Intrathoracic rupture of a pectoral muscle haematoma JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 657 OP 658 DO 10.1136/emj.2006.035774 VO 23 IS 8 A1 P A R Armstrong A1 G W McNaughton YR 2006 UL http://emj.bmj.com/content/23/8/657.abstract AB