RT Journal Article SR Electronic T1 Deep sulcus sign JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 608 OP 608 DO 10.1136/emermed-2011-200974 VO 29 IS 7 A1 Tseng, Yao-Hui A1 Liu, Kao-Lang A1 Shih, I-Lun YR 2012 UL http://emj.bmj.com/content/29/7/608.abstract AB