RT Journal Article SR Electronic T1 Duodenal perforation by an inferior vena cava filter JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr2017219299 DO 10.1136/bcr-2017-219299 VO 2017 A1 Kunal Kishor Jha A1 Lokendra K Thakur A1 Sweta Jha YR 2017 UL http://casereports.bmj.com/content/2017/bcr-2017-219299.abstract AB