RT Journal Article SR Electronic T1 Recurrent lower gastrointestinal bleeding in an 87-year-old woman JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr-2017-223601 DO 10.1136/bcr-2017-223601 VO 2017 A1 Ilimbek Beketaev A1 Patrick R Reardon A1 Ekene I Okoye A1 Lee M Morris YR 2017 UL http://casereports.bmj.com/content/2017/bcr-2017-223601.abstract AB