ChemoradiotherapyRectal NeoplasmsChemoradiotherapy, AdjuvantCombined Modality TherapyRadiotherapy, AdjuvantChemotherapy, AdjuvantNeoadjuvant TherapyFluorouracilNeoplasm StagingDigestive System Surgical ProceduresAntineoplastic Combined Chemotherapy ProtocolsAdjuvants, ImmunologicTreatment OutcomeEsophageal NeoplasmsNeoplasm Recurrence, LocalAdenocarcinomaRadiotherapy DosageCisplatinCarcinoma, Squamous CellDisease-Free SurvivalSurvival RatePreoperative CareSurvival AnalysisRadiotherapyPrognosisHead and Neck NeoplasmsRetrospective StudiesRectumAntimetabolites, AntineoplasticDeoxycytidineEsophagectomyFollow-Up StudiesDose FractionationColonic NeoplasmsLung NeoplasmsAntineoplastic AgentsKaplan-Meier EstimateFreund's AdjuvantOrganoplatinum CompoundsLeucovorinOrgan Sparing TreatmentsProspective StudiesColorectal NeoplasmsDrug Administration ScheduleNasopharyngeal NeoplasmsPelvic NeoplasmsNeoplasm MetastasisNeoplasm InvasivenessColorectal SurgeryProctoscopyCarcinoma, Non-Small-Cell LungLymphatic MetastasisPancreatic NeoplasmsCarcinomaInduction ChemotherapyAnal CanalStomach NeoplasmsBreast NeoplasmsPositron-Emission TomographyTegafurLymph Node ExcisionHypopharyngeal NeoplasmsTumor Markers, BiologicalUterine Cervical NeoplasmsColostomyRadiation InjuriesColectomyCarboplatinTime FactorsEarly Detection of CancerRadiotherapy, ConformalPaclitaxelFeasibility StudiesTaxoidsPelvisRisk FactorsPelvic ExenterationOropharyngeal NeoplasmsAdjuvants, PharmaceuticLaryngeal NeoplasmsMultivariate AnalysisUtahPostoperative CareEndosonographyDisease ProgressionRisk AssessmentRemission InductionDeglutition DisordersPredictive Value of TestsClinical Trials as TopicAnastomotic LeakBrachytherapyMucositisTomography, X-Ray ComputedGene Expression Regulation, NeoplasticRadiation-Sensitizing AgentsOxonic AcidNeoplasmsGastrectomyFluorodeoxyglucose F18