Genes, BRCA1Neoplastic Syndromes, HereditaryBreast NeoplasmsBRCA2 ProteinGenes, BRCA2Breast Neoplasms, MaleGerm-Line MutationBreastPedigreeBRCA1 ProteinGenetic Predisposition to DiseaseOvarian NeoplasmsGenetic TestingFounder EffectFamily HealthDNA Mutational AnalysisAge FactorsIcelandNeoplasm ProteinsJewsMammographyCarcinoma, Ductal, BreastMutationRegistriesReceptors, EstrogenFamilyRisk FactorsHeterozygoteGenetic LinkageDNA, NeoplasmChromosomes, Human, Pair 17Lod ScoreCell Line, TumorCase-Control StudiesAge of OnsetBreast DiseasesReceptor, erbB-2TamoxifenReceptors, ProgesteroneAustraliaFinlandGene Expression Regulation, NeoplasticOntarioPrognosisNeoplasm MetastasisGenetic MarkersNeoplasm InvasivenessTumor Markers, BiologicalPolymorphism, GeneticTranscription FactorsGenotypeTumor Suppressor ProteinsSiblingsCheckpoint Kinase 2Antineoplastic Agents, HormonalHaplotypesGenetic CounselingExonsCohort StudiesNeoplasm StagingEarly Detection of CancerMastectomyAntineoplastic AgentsChromosome MappingPostmenopauseChemotherapy, AdjuvantRiskCarcinoma, LobularNeoplasmsProstatic NeoplasmsColorectal Neoplasms, Hereditary NonpolyposisRisk AssessmentCarcinoma, Intraductal, NoninfiltratingMCF-7 CellsMice, NudeFollow-Up StudiesBreast FeedingPremenopauseTumor Cells, CulturedImmunohistochemistryAntineoplastic Combined Chemotherapy ProtocolsEstrogen Receptor alphaSurvival AnalysisDrug Resistance, NeoplasmEstrogensCarcinomaUnited StatesBreast Self-ExaminationMammary Neoplasms, ExperimentalDisease-Free SurvivalNeoplasms, Hormone-DependentGene Expression ProfilingLymphatic MetastasisCell ProliferationOdds RatioIncidenceNeoplasm Recurrence, LocalMenopauseSurvival RateColorectal Neoplasms