RT Journal Article SR Electronic T1 Elective colectomy for severe ulcerative colitis may reduce mortality more than medical therapy JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 29 OP 29 DO 10.1136/ebmed-2015-110311 VO 21 IS 1 A1 Harini Naidu A1 Francis A Farraye A1 Ansu Noronha YR 2016 UL http://ebm.bmj.com/content/21/1/29.abstract AB