BreastCarcinoma, Ductal, BreastBreast DiseasesBreast FeedingBreast Neoplasms, MaleReceptors, EstrogenMammographyFibrocystic Breast DiseaseCell Line, TumorBreast ImplantsReceptor, erbB-2Breast Self-ExaminationReceptors, ProgesteroneTamoxifenGene Expression Regulation, NeoplasticCarcinoma, Intraductal, NoninfiltratingMastectomyPrognosisTumor Markers, BiologicalCarcinoma, LobularNeoplasm InvasivenessUltrasonography, MammaryNeoplasm MetastasisGenes, BRCA1Risk FactorsAntineoplastic Agents, HormonalCase-Control StudiesLymphatic MetastasisNeoplasm StagingImmunohistochemistryPostmenopauseTumor Cells, CulturedMilk, HumanMastectomy, SegmentalMammaplastyBreast CystAntineoplastic AgentsNeoplasm ProteinsCarcinomaMCF-7 CellsTime FactorsChemotherapy, AdjuvantEstrogensMammary Glands, HumanFibroadenomaEstrogen Receptor alphaNipplesPremenopauseMammary Neoplasms, ExperimentalBreast ImplantationMenopauseSensitivity and SpecificityBRCA2 ProteinBRCA1 ProteinAxillaCell ProliferationReproducibility of ResultsGenes, BRCA2Neoplasms, Hormone-DependentTreatment OutcomeTriple Negative Breast NeoplasmsInflammatory Breast NeoplasmsGenes, erbB-2Carcinoma, DuctalFollow-Up StudiesNeoplasm Recurrence, LocalAromatase InhibitorsEstrogen AntagonistsMice, NudeDisease-Free SurvivalGenetic Predisposition to DiseaseProspective StudiesCarcinoma in SituMass ScreeningIncidenceCohort StudiesSurvival AnalysisRNA, MessengerReverse Transcriptase Polymerase Chain ReactionDrug Resistance, NeoplasmGene Expression ProfilingAntineoplastic Combined Chemotherapy ProtocolsAge FactorsRetrospective StudiesEstradiolRiskMonitoring, PhysiologicSignal TransductionBiopsy, NeedleRisk AssessmentMastectomy, Modified RadicalDNA, NeoplasmDisease ProgressionSurvival RateApoptosisOdds RatioNeoadjuvant TherapyUnited StatesMutationSelective Estrogen Receptor Modulators