RT Journal Article SR Electronic T1 An unusual cause of hip pain in a child JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 320 OP 320 DO 10.1136/emj.18.4.320 VO 18 IS 4 A1 M Hynes A1 F Lam YR 2001 UL http://emj.bmj.com/content/18/4/320.abstract AB