RT Journal Article SR Electronic T1 The abdominal wall test. JF Archives of Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 247 OP 248 DO 10.1136/emj.4.4.247 VO 4 IS 4 A1 A P Wetherall YR 1987 UL http://emj.bmj.com/content/4/4/247.abstract AB