RT Journal Article SR Electronic T1 Bouveret syndrome: approaching the obstructive duodenal gallstone JF Trauma Surgery & Acute Care Open JO Trauma Surg Acute Care Open FD BMJ Publishing Group Ltd SP e000945 DO 10.1136/tsaco-2022-000945 VO 7 IS 1 A1 Adrian A Coleoglou Centeno A1 Nikhil R Shah A1 Samuel H Cass A1 John P Walker YR 2022 UL http://tsaco.bmj.com/content/7/1/e000945.abstract AB