title: Variability in surgical practice. An unresolved problem.
authors.affiliation: Servicio de Cirugía General y Digestiva, Hospital del Mar, Barcelona, España. Electronic address: mpera@hospitaldelmar.cat.
authors.forename: Miguel
authors.initials: M
authors.lastname: Pera
mesh_terms: D006801:Humans; D010818:Practice Patterns, Physicians'; D013514:Surgical Procedures, Operative / Q000592:standards*