Bariatric SurgeryObesity, MorbidLaparoscopyGeneral SurgeryGastric BypassCholecystectomy, LaparoscopicGastroplastyWeight LossPostoperative ComplicationsBiliopancreatic DiversionSurgery Department, HospitalSpecialties, SurgicalSurgical Procedures, OperativeTreatment OutcomeRetrospective StudiesInternship and ResidencyObesityEducation, Medical, GraduateJejunoileal BypassBariatric MedicinePostoperative CareAnastomosis, Roux-en-YProspective StudiesAppendectomyLaparoscopesPreoperative CarePostoperative PeriodPreoperative PeriodHyperoxaluriaLength of StayIntraoperative ComplicationsAvitaminosisGastrectomyFollow-Up StudiesBody Mass IndexSurgical Procedures, ElectiveRoboticsTime FactorsHernia, InguinalFellowships and ScholarshipsVascular Surgical ProceduresOperative TimeCareer ChoiceGynecologic Surgical ProceduresBariatricsClinical CompetencePneumoperitoneum, ArtificialAmbulatory Surgical ProceduresReoperationTraumatologyFundoplication