Gene AmplificationBreastIn Situ Hybridization, FluorescenceGenes, erbB-2Nucleic Acid Amplification TechniquesReceptor, erbB-2Carcinoma, Ductal, BreastGene DosageBreast DiseasesPolymerase Chain ReactionGene Expression Regulation, NeoplasticPhosphonoacetic AcidImmunohistochemistryBase SequenceDihydroorotaseDrug ResistanceTetrahydrofolate DehydrogenaseCell Line, TumorDNA, NeoplasmMolecular Sequence DataTumor Markers, BiologicalGenes, mycBreast FeedingPrognosisBlotting, SouthernReceptors, EstrogenReceptor, Epidermal Growth FactorBreast NeoplasmsChromosomes, Human, Pair 17Tumor Cells, CulturedTissue Array AnalysisSensitivity and SpecificityMutationRNA, MessengerNucleic Acid HybridizationMethotrexateCarbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)Neoplasm StagingBreast Neoplasms, MaleDNA PrimersNeoplasm InvasivenessParaffin EmbeddingOncogenesReceptors, ProgesteroneNeoplasm ProteinsReverse Transcriptase Polymerase Chain ReactionCarcinoma, LobularChromogenic CompoundsMammographyAntineoplastic AgentsChromosome AberrationsDNAGenes, erbB-1RNA, NeoplasmAspartate CarbamoyltransferaseCarcinomaFibrocystic Breast DiseaseCarcinoma, Intraductal, NoninfiltratingAneuploidyDrug Resistance, NeoplasmAdenocarcinomaLymphatic MetastasisNeuroblastomaCell LineNeoplasm MetastasisSequence Analysis, DNAGene Expression ProfilingProto-Oncogene ProteinsIn Situ HybridizationBreast ImplantsLung NeoplasmsAmaranthusCyclin D1Proto-OncogenesChorionBreast Self-ExaminationGene ExpressionFibroblast Growth Factor 3DNA, BacterialOligonucleotide Array Sequence AnalysisTamoxifenOncogene ProteinsDNA Mutational AnalysisReproducibility of ResultsAntibodies, Monoclonal, HumanizedKaryotypingProto-Oncogene Proteins c-mdm2Immunoenzyme TechniquesChromosome MappingDNA ProbesCricetinaeProto-Oncogene Proteins c-mycSurvival AnalysisGene RearrangementComparative Genomic HybridizationCricetulusCloning, MolecularMastectomyTime FactorsNuclear Proteins