Carcinoma, NeuroendocrineNeuroendocrine TumorsCarcinoma, Large CellCarcinoid TumorCarcinomaNeurosecretory SystemsCarcinoma, Merkel CellCarcinoma, Small CellImmunohistochemistryCarcinoma, Squamous CellNeoplasms, Complex and MixedChromograninsNeuroendocrine CellsTumor Markers, BiologicalNeoplasms, MesothelialSynaptophysinLung NeoplasmsChromogranin ACommon Bile Duct NeoplasmsFatal OutcomeCarcinoma, HepatocellularGastrointestinal NeoplasmsAmpulla of VaterPancreatic NeoplasmsLiver NeoplasmsThymus NeoplasmsAdenocarcinomaPrognosisParanasal Sinus NeoplasmsNeoplasm StagingNeoplasms, Multiple PrimaryCarcinoma in SituLaryngeal NeoplasmsBronchial NeoplasmsTreatment OutcomeTomography, X-Ray ComputedRetrospective StudiesGallbladder NeoplasmsOctreotideCarcinoma, MedullaryBiopsyIleal NeoplasmsAnal SacsNeoplasm InvasivenessCarcinoma, PapillaryImmunoenzyme TechniquesUterine Cervical NeoplasmsEnterochromaffin CellsStomach NeoplasmsCarcinoma, Ductal, BreastLymphatic MetastasisBiliary Tract NeoplasmsBreast NeoplasmsNeoplasm GradingCombined Modality TherapyEtoposideTissue Array AnalysisNeoplasm Recurrence, LocalSurvival AnalysisSurvival RateNeoplasm MetastasisAntineoplastic Combined Chemotherapy ProtocolsCarcinoma, Transitional CellNose NeoplasmsKaplan-Meier EstimateCisplatinDisease-Free SurvivalFollow-Up StudiesSkin NeoplasmsCarcinoma, Basal CellKeratinsHead and Neck NeoplasmsMediastinal NeoplasmsCalcitoninCat DiseasesAntineoplastic AgentsLoss of HeterozygosityTumor Suppressor Protein p53Precancerous ConditionsNeuroendocrine Secretory Protein 7B2PancreaticoduodenectomyGene Expression Regulation, NeoplasticCarcinoma, Intraductal, NoninfiltratingUrinary Bladder NeoplasmsCell Line, TumorGenes, p16