RT Journal Article SR Electronic T1 Re: 'Hunt the thimble': a study of the radiology of ingested foreign bodies. JF Archives of Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 197 OP 198 DO 10.1136/emj.4.3.197-b VO 4 IS 3 YR 1987 UL http://emj.bmj.com/content/4/3/197.2.abstract AB