title: Administrative data analyses in bariatric surgery--limits of the technique.
authors.forename: David R
authors.initials: DR
authors.lastname: Flum
mesh_terms: D050110:Bariatric Surgery; D003625:Data Collection; D006801:Humans; D017063:Outcome Assessment, Health Care; D011785:Quality Assurance, Health Care / Q000379:methods*; D012107:Research Design