Gastric BypassObesity, MorbidAnastomosis, Roux-en-YGastroplastyWeight LossBariatric SurgeryLaparoscopyBiliopancreatic DiversionPostoperative ComplicationsGlucagon-Like Peptide 1ObesityJejunostomyPostoperative PeriodSurgical StaplersPeptide YYSteatorrheaGastric FistulaJejunumHyperoxaluriaStomachIncretinsTreatment OutcomeBody Mass IndexFollow-Up StudiesGastrostomyPostoperative CareAvitaminosisGastric Inhibitory PolypeptideFood PreferencesDiabetes Mellitus, Type 2Prospective StudiesCoronary Artery Bypass, Off-PumpAppetite RegulationTime FactorsReoperationHerniaPostprandial PeriodSurgical StaplingOmentumJejunal DiseasesBlood GlucosePreoperative PeriodAnastomosis, SurgicalConstriction, PathologicGhrelinMalabsorption SyndromesNesidioblastosisAnastomotic LeakCandySatiety ResponseNephrolithiasisRetrospective StudiesJejunoileal BypassGastrointestinal HormonesGastrectomyHernia, AbdominalCaloric RestrictionBody WeightGastroenterostomyVascular PatencyCalcium CitrateLength of StaySaphenous VeinUtahPleasureDumping SyndromeDuodenum