RT Journal Article SR Electronic T1 Young patient with periumbilical pain JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 540 OP 564 DO 10.1136/emermed-2019-208645 VO 36 IS 9 A1 Konstantinos Parperis A1 Christina Flourou YR 2019 UL http://emj.bmj.com/content/36/9/540.abstract AB