RT Journal Article SR Electronic T1 Gastric bypass has better long-term outcomes than gastric banding JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 18 OP 18 DO 10.1136/ebmed-2014-110113 VO 20 IS 1 A1 Daniel P Schauer YR 2015 UL http://ebm.bmj.com/content/20/1/18.abstract AB