RT Journal Article SR Electronic T1 Weight loss ≥10% is required by the severely obese to achieve minimal clinically important differences in health-related quality of life JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 69 OP 69 DO 10.1136/ebmed-2014-110129 VO 20 IS 2 A1 Rothberg, Amy Elizabeth YR 2015 UL http://ebm.bmj.com/content/20/2/69.abstract AB