Neoadjuvant TherapyPancreatic NeoplasmsCombined Modality TherapyTreatment OutcomeChemoradiotherapy, AdjuvantPreoperative CareChemotherapy, AdjuvantAdenocarcinomaPancreatectomyRadiotherapy, AdjuvantPancreaticoduodenectomyNeoplasm StagingPostoperative ComplicationsRetrospective StudiesFluorouracilSurvival RateRectal NeoplasmsCA-19-9 AntigenAntineoplastic Combined Chemotherapy ProtocolsPrognosisEsophageal NeoplasmsEsophagectomyNeoplasm Recurrence, LocalLiver NeoplasmsBariatric SurgeryFollow-Up StudiesProspective StudiesHepatectomyCisplatinCarcinoma, Pancreatic DuctalSurvival AnalysisLung NeoplasmsTomography, X-Ray ComputedDisease-Free SurvivalGeneral SurgeryTime FactorsDeoxycytidineCarcinoma, Squamous CellThoracic SurgeryPostoperative CarePostoperative PeriodPneumonectomyHypopharyngeal NeoplasmsColorectal NeoplasmsKaplan-Meier EstimateCardiac Surgical ProceduresGastrectomyMetastasectomyDigestive System Surgical ProceduresPeritoneal LavageLaparoscopyCarcinoma, Non-Small-Cell LungRadiotherapy DosageStomach NeoplasmsPerioperative CareInduction ChemotherapyLeucovorinSurgery, PlasticLaryngectomyPredictive Value of TestsChemoradiotherapyLymphatic MetastasisEsophagogastric JunctionMultivariate AnalysisOrganoplatinum CompoundsAmpulla of VaterRadiotherapyEndosonographyFeasibility StudiesBile Duct NeoplasmsAntimetabolites, AntineoplasticPatient SelectionThoracic Surgery, Video-AssistedPositron-Emission TomographyCataract ExtractionOropharyngeal NeoplasmsLymph Node ExcisionRandomized Controlled Trials as TopicSurgery, Computer-AssistedSurgical Procedures, OperativeRisk FactorsCoronary Artery BypassTumor Markers, BiologicalSurgery, OralColectomyHepatoblastomaSarcomaFluorodeoxyglucose F18CholangiocarcinomaNeoplasm MetastasisProportional Hazards ModelsNeoplasm SeedingRisk AssessmentCardiopulmonary BypassSurgical Procedures, ElectiveColorectal SurgeryLaryngeal NeoplasmsReoperationCarcinoma, Acinar CellIntraoperative Complications