Preoperative CarePreoperative PeriodTreatment OutcomeRetrospective StudiesPostoperative ComplicationsPostoperative PeriodRectal NeoplasmsProspective StudiesFollow-Up StudiesGerminal CenterTime FactorsTomography, X-Ray ComputedPostoperative CarePredictive Value of TestsChild Day Care CentersNeoadjuvant TherapyPrognosisSurgical Procedures, ElectiveRisk FactorsIntraoperative CareNeoplasm StagingCombined Modality TherapyIntraoperative PeriodCardiac Surgical ProceduresCommunity Health CentersSurgical Procedures, OperativeTrauma CentersTertiary Care CentersIntraoperative ComplicationsRisk AssessmentMagnetic Resonance ImagingReoperationSurvival RateSensitivity and SpecificityLength of StayPremedicationPerioperative CareAdenocarcinomaChi-Square DistributionCoronary Artery BypassNeurosurgical ProceduresSurgery, Computer-AssistedSurvival AnalysisCenters for Disease Control and Prevention (U.S.)Blood Loss, SurgicalPatient SelectionVascular Surgical ProceduresLaparoscopyNeoplasm Recurrence, LocalLogistic ModelsDigestive System Surgical ProceduresPain, PostoperativeMultivariate AnalysisProstatectomyHepatectomyArthroplasty, Replacement, KneePancreaticoduodenectomyRecovery of FunctionKaplan-Meier EstimateRadiotherapy, AdjuvantSeverity of Illness IndexPoison Control CentersSurgical Wound InfectionCohort StudiesEsophagectomyLymphatic MetastasisCardiopulmonary BypassOsteotomyReproducibility of ResultsPhotosynthetic Reaction Center Complex ProteinsEndosonographyRange of Motion, ArticularSpinal FusionEsophageal NeoplasmsArthroplasty, Replacement, HipVisual AcuityMonitoring, IntraoperativeChemotherapy, AdjuvantDecompression, SurgicalInformation CentersAge FactorsScoliosisOrthopedic ProceduresAortic Aneurysm, AbdominalPerioperative PeriodBiopsy, NeedlePneumonectomyDisease-Free SurvivalAngiographyKeratomileusis, Laser In SituAnesthesiaAmbulatory Surgical ProceduresUnited StatesLiver NeoplasmsIncidenceSurgical Procedures, Minimally InvasivePain MeasurementOphthalmologic Surgical ProceduresHospital MortalityFeasibility Studies