RT Journal Article SR Electronic T1 Short answer question case series: evaluation of the swollen, blue extremity JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 604 OP 605 DO 10.1136/emermed-2011-200864 VO 29 IS 7 A1 Josh Beck A1 Timothy B Jang YR 2012 UL http://emj.bmj.com/content/29/7/604.abstract AB