BreastPhenotypeBreast NeoplasmsCarcinoma, Ductal, BreastReceptors, EstrogenCell Line, TumorReceptor, erbB-2Breast DiseasesTamoxifenReceptors, ProgesteroneGene Expression Regulation, NeoplasticMammographyNeoplasm MetastasisNeoplasm InvasivenessPrognosisTumor Markers, BiologicalBreast Neoplasms, MaleAntineoplastic Agents, HormonalNeoplasm StagingNeoplasm ProteinsEarly Detection of CancerMastectomyRisk FactorsAntineoplastic AgentsMutationGenes, BRCA1PostmenopauseChemotherapy, AdjuvantCarcinoma, LobularGenetic Predisposition to DiseaseMice, NudeTumor Cells, CulturedCarcinoma, Intraductal, NoninfiltratingMCF-7 CellsGene Expression ProfilingCase-Control StudiesCell ProliferationImmunohistochemistryDrug Resistance, NeoplasmBreast FeedingEstrogen Receptor alphaPremenopauseAntineoplastic Combined Chemotherapy ProtocolsCarcinomaSurvival AnalysisEstrogensRNA, MessengerReverse Transcriptase Polymerase Chain ReactionMammary Neoplasms, ExperimentalBreast Self-ExaminationNeoplasms, Hormone-DependentDisease-Free SurvivalOvarian NeoplasmsRiskLymphatic MetastasisFollow-Up StudiesNeoplasm Recurrence, LocalMenopauseBRCA2 ProteinSurvival RateBRCA1 ProteinGenes, BRCA2Signal TransductionGenotypeDisease ProgressionLung NeoplasmsProspective StudiesAge FactorsFibrocystic Breast DiseaseRisk AssessmentAromatase InhibitorsNeoplasmsRetrospective StudiesEstrogen AntagonistsSurvivorsBlotting, WesternOdds RatioGenes, erbB-2Mastectomy, SegmentalAxillaMammary Glands, HumanIncidenceProstatic NeoplasmsApoptosisTreatment OutcomeDNA, NeoplasmTime FactorsCell DivisionRNA, Small InterferingCell MovementCohort StudiesOligonucleotide Array Sequence AnalysisXenograft Model Antitumor AssaysMolecular Sequence DataMultivariate AnalysisEstradiolNeoplasm TransplantationFluorouracilUnited StatesCell Transformation, Neoplastic