title: Guest editors' introduction to feature section: bariatric surgery.
authors.forename: Stephen W
authors.initials: SW
authors.lastname: Trenkner
authors.forename: Alexander R
authors.initials: AR
authors.lastname: Margulis
authors.forename: Alfons
authors.initials: A
authors.lastname: Pomp
mesh_terms: D050110:Bariatric Surgery; D006801:Humans; D009767:Obesity, Morbid / Q000453:epidemiology / Q000601:surgery*; D015995:Prevalence; D011860:Radiography, Abdominal; D014481:United States / Q000453:epidemiology