RT Journal Article SR Electronic T1 Bariatric surgery guidelines in need of revision, experts argue JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E234 OP E234 DO 10.1503/cmaj.109-3786 VO 183 IS 4 A1 Emily Senger YR 2011 UL http://www.cmaj.ca/content/183/4/E234.abstract