Cyclin D1Cyclin ABreastCyclin ECyclin BCyclin B1Cyclin D2Cyclin D3Cyclin A1Cyclin A2Cyclin DCarcinoma, Ductal, BreastBreast DiseasesCyclin G1CyclinsCyclin GCyclin CCyclin-Dependent KinasesCyclin B2Breast FeedingCyclin TCyclin-Dependent Kinase 2Cell CycleCyclin G2Cyclin HCell Line, TumorCyclin-Dependent Kinase 4Receptors, EstrogenCDC2-CDC28 KinasesBreast Neoplasms, MaleG1 PhaseCDC2 Protein KinaseMammographyGene Expression Regulation, NeoplasticCell Cycle ProteinsFibrocystic Breast DiseaseReceptor, erbB-2Cyclin-Dependent Kinase Inhibitor p27S PhaseBreast ImplantsReceptors, ProgesteroneRetinoblastoma ProteinCell ProliferationTamoxifenBreast Self-ExaminationTumor Cells, CulturedImmunohistochemistryTumor Markers, BiologicalCyclin IPrognosisCell DivisionPhosphorylationProtein-Serine-Threonine KinasesOncogene ProteinsCarcinoma, Intraductal, NoninfiltratingMitosisNeoplasm InvasivenessRNA, MessengerMastectomyGenes, bcl-1Carcinoma, LobularNeoplasm ProteinsCyclin-Dependent Kinase Inhibitor p21Neoplasm MetastasisTumor Suppressor ProteinsUltrasonography, MammaryCyclin-Dependent Kinase 6Antineoplastic AgentsNeoplasm StagingAntineoplastic Agents, HormonalSignal TransductionGenes, BRCA1Lymphatic MetastasisBlotting, WesternApoptosisCase-Control StudiesRisk FactorsCarcinomaTime FactorsEstrogen Receptor alphaG2 PhaseReverse Transcriptase Polymerase Chain ReactionMammary Neoplasms, ExperimentalPostmenopauseMammary Glands, HumanMCF-7 CellsEstrogensDown-RegulationMolecular Sequence DataTransfectionPromoter Regions, GeneticMastectomy, SegmentalMilk, HumanMammaplastyTranscription FactorsBreast CystMutationTumor Suppressor Protein p53Proto-Oncogene ProteinsMice, Nude