Bariatric SurgeryObesity, MorbidLaparoscopyGeneral SurgeryGastric BypassCholecystectomy, LaparoscopicGastroplastyWeight LossPostoperative ComplicationsBiliopancreatic DiversionTreatment OutcomeSurgical Procedures, OperativeSurgery Department, HospitalSpecialties, SurgicalRetrospective StudiesPostoperative CareInternship and ResidencyProspective StudiesObesityPostoperative PeriodEducation, Medical, GraduateJejunoileal BypassPreoperative CareBariatric MedicineAnastomosis, Roux-en-YPreoperative PeriodIntraoperative ComplicationsLaparoscopesAppendectomyFollow-Up StudiesLength of StaySurgical Procedures, ElectiveHyperoxaluriaGastrectomyAvitaminosisTime FactorsBody Mass IndexRoboticsVascular Surgical ProceduresHernia, InguinalGynecologic Surgical ProceduresFellowships and ScholarshipsOperative TimeReoperationAmbulatory Surgical ProceduresCareer ChoiceClinical CompetenceRisk FactorsPain, PostoperativeBariatricsThoracic SurgeryPneumoperitoneum, ArtificialOperating RoomsFundoplicationTraumatologySuture TechniquesCardiac Surgical Procedures