RT Journal Article SR Electronic T1 Over half of the patients who undergo adjustable gastric banding may require revision bariatric surgery JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 191 OP 191 DO 10.1136/ebmed-2017-110753 VO 22 IS 5 A1 Christopher de Gara A1 Vanessa Falk YR 2017 UL http://ebm.bmj.com/content/22/5/191.abstract AB