RT Journal Article SR Electronic T1 Calcification on an X-Ray: an important feature to recognise JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e233441 DO 10.1136/bcr-2019-233441 VO 13 IS 7 A1 Adam Fell A1 Andrew Smith YR 2020 UL http://casereports.bmj.com/content/13/7/e233441.abstract AB