RT Journal Article SR Electronic T1 Hospital hoppers--jumping to conclusion? JF Archives of Emergency Medicine JO Arch Emerg Med FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 362 OP 364 DO 10.1136/emj.10.4.362 VO 10 IS 4 A1 M V Prescott YR 1993 UL http://emj.bmj.com/content/10/4/362.abstract AB