GastrectomyStomach NeoplasmsPostgastrectomy SyndromesAnastomosis, Roux-en-YGastroenterostomyGastric StumpEsophagostomyLaparoscopyDuodenostomyStomachLymph Node ExcisionDumping SyndromeStomach DiseasesObesity, MorbidJejunostomySerous MembranePostoperative ComplicationsJejunumVagotomyGastroscopyStomach UlcerBariatric SurgeryAdenocarcinomaTreatment OutcomePylorusTissue and Organ ProcurementAnastomosis, SurgicalEsophagusOrgan TransplantationDuodenumGastric BypassZollinger-Ellison SyndromeGastroplastyVagotomy, TruncalAnastomotic LeakDuodenogastric RefluxRetrospective StudiesPeptic UlcerCarcinoma, Signet Ring CellMelenaDuodenal UlcerReconstructive Surgical ProceduresSurgical EquipmentWeight LossGastric MucosaJejunal DiseasesLymphatic MetastasisDuodenoscopesSplenectomyGastric EmptyingSurgical StaplingCobalt IsotopesPacific StatesAlcoholicsMultiple Organ FailureSurgically-Created StructuresNeoplasm StagingSurgical StaplersTime FactorsPyloric AntrumOrgan Sparing Treatments