BreastBreast NeoplasmsCarcinoma, Ductal, BreastCell Line, TumorBreast DiseasesTumor Markers, BiologicalReceptors, EstrogenMammary Neoplasms, ExperimentalTumor BurdenGene Expression Regulation, NeoplasticNeoplasm MetastasisReceptors, ProgesteroneTumor Necrosis Factor-alphaReceptor, erbB-2Neoplasm ProteinsGenes, Tumor SuppressorBreast FeedingTamoxifenTumor Suppressor Protein p53Cell ProliferationImmunohistochemistryBreast Neoplasms, MaleMice, NudeTumor Suppressor ProteinsTransplantation, HeterologousPrognosisRNA, MessengerLymphatic MetastasisNeoplasm StagingNeoplasms, ExperimentalDNA, NeoplasmWilms TumorTumor MicroenvironmentCarcinoma, LobularCarcinoma, Intraductal, NoninfiltratingMammographyNeovascularization, PathologicXenograft Model Antitumor AssaysNeoplasm InvasivenessGene Expression ProfilingFibrocystic Breast DiseaseReverse Transcriptase Polymerase Chain ReactionFibroadenomaEstrogen Receptor alphaSignal TransductionTumor Cells, CulturedAdenocarcinomaCell DivisionUltrasonography, MammaryMammary Neoplasms, AnimalCarcinoid TumorAntineoplastic AgentsBrain NeoplasmsAntineoplastic Agents, HormonalAntigens, NeoplasmNeoplasm TransplantationDisease ProgressionMice, Inbred BALB CNeoplasm Recurrence, LocalCell Transformation, NeoplasticMammary Glands, HumanRNA, NeoplasmAdenofibromaTime FactorsBlotting, WesternNeoplasmsMice, SCIDNeuroendocrine TumorsNeoplasms, Hormone-DependentMCF-7 CellsMastectomyGenes, BRCA1Mastectomy, SegmentalAntibodies, MonoclonalEstrogensTreatment OutcomeMutationOvarian NeoplasmsSurvival AnalysisCell MovementImmunoenzyme TechniquesOligonucleotide Array Sequence AnalysisGenes, erbB-2Breast ImplantsTransfectionApoptosisPhyllodes TumorCell Growth ProcessesCarcinoma, DuctalBRCA1 ProteinRNA, Small InterferingCarcinomaDisease-Free SurvivalBreast Self-ExaminationBone NeoplasmsPolymerase Chain ReactionCase-Control StudiesGene AmplificationDown-RegulationRetrospective Studies