Neuroendocrine TumorsCarcinoma, NeuroendocrineCarcinoid TumorPancreatic NeoplasmsChromogranin ACarcinomaOctreotideGastrointestinal NeoplasmsNeurosecretory SystemsReceptors, SomatostatinNeuroendocrine CellsTumor Markers, BiologicalDigestive System NeoplasmsCarcinoma, Squamous CellChromograninsIntestinal NeoplasmsCarcinoma, HepatocellularSomatostatinLiver NeoplasmsIleal NeoplasmsLung NeoplasmsCell Line, TumorImmunohistochemistryVipomaBronchial NeoplasmsNeoplasm MetastasisGastrinomaEndocrine Gland NeoplasmsCarcinoma, Small CellNeoplasm StagingTumor BurdenRadiopharmaceuticalsPrognosisGlucagonomaStomach NeoplasmsBreast NeoplasmsAdenocarcinomaGene Expression Regulation, NeoplasticCarcinoma, Islet CellAntineoplastic AgentsNeoplasmsCarcinoma in SituParagangliomaOvarian NeoplasmsRetrospective StudiesTreatment OutcomeThyroid NeoplasmsNeoplasm ProteinsOrganometallic CompoundsPheochromocytomaCarcinoma, MedullaryColonic NeoplasmsTomography, X-Ray ComputedCarcinoma, PapillarySurvival AnalysisMice, NudeTumor Suppressor Protein p53Neoplasm InvasivenessIndium RadioisotopesCarcinoma, Large CellDuodenal NeoplasmsSurvival RateCell ProliferationDisease ProgressionLutetiumRNA, MessengerApudomaYttrium RadioisotopesInsulinomaCarcinoma, Merkel CellMultiple Endocrine Neoplasia Type 1DNA, NeoplasmReverse Transcriptase Polymerase Chain ReactionPositron-Emission TomographySynaptophysinSomatostatinomaKi-67 AntigenGenes, Tumor SuppressorNeoplasms, Multiple PrimarySkin NeoplasmsAdrenal Gland NeoplasmsMutationEarly Detection of CancerTumor Necrosis Factor-alphaNeoplasm Recurrence, LocalDisease-Free SurvivalSensitivity and SpecificityCarcinoma, Ductal, BreastCombined Modality TherapyFollow-Up StudiesNeovascularization, Pathologic3-IodobenzylguanidineNeoplasms, ExperimentalXenograft Model Antitumor AssaysNeuroectodermal TumorsCarcinoma, Basal CellAntineoplastic Combined Chemotherapy ProtocolsUrinary Bladder NeoplasmsSignal TransductionKaplan-Meier Estimate