Genes, erbBReceptor, erbB-3Receptor, erbB-2Neuregulin-1Sensitivity and SpecificityDiagnostic ErrorsOncogene Proteins v-erbBDiagnostic Tests, RoutineReceptor, Epidermal Growth FactorDiagnostic Techniques and ProceduresDiagnostic ImagingReagent Kits, DiagnosticGenes, erbB-2Reproducibility of ResultsBreast NeoplasmsMolecular Diagnostic TechniquesPredictive Value of TestsROC CurveDiagnostic and Statistical Manual of Mental DisordersSignal TransductionDiagnostic ServicesCell Line, TumorTomography, X-Ray ComputedRetrospective StudiesDiagnosisQuinazolinesBiopsyPolymerase Chain ReactionClinical Laboratory TechniquesProspective StudiesEpidermal Growth FactorTumor Markers, BiologicalPhosphorylationBiological MarkersMucin-4Gene Expression Regulation, NeoplasticImmunohistochemistryFalse Positive ReactionsPrognosisTime FactorsMagnetic Resonance ImagingDiagnosis, Computer-AssistedFalse Negative ReactionsBiopsy, NeedleObserver VariationMolecular Sequence DataEnzyme-Linked Immunosorbent AssayAntibodies, MonoclonalAlgorithmsMicroscopyLigandsParasitologyProto-Oncogene Proteins c-aktImmunoassayProto-Oncogene ProteinsCell ProliferationDimerizationReverse Transcriptase Polymerase Chain ReactionPhosphatidylinositol 3-KinasesEarly DiagnosisUltrasonographyNeoplasmsAntineoplastic AgentsEvaluation Studies as TopicSerologic TestsContrast MediaMutationDiagnostic Techniques, Obstetrical and GynecologicalSeverity of Illness IndexDiagnostic Techniques, Digestive SystemBiopsy, Fine-NeedleTumor Cells, CulturedPrevalenceGene AmplificationPhysical ExaminationRadiographyFollow-Up StudiesAdenocarcinomaImmunoenzyme TechniquesMammary Neoplasms, ExperimentalTreatment OutcomeBlotting, WesternBronchoscopyRisk FactorsPregnancyPoint-of-Care SystemsAntibodies, Monoclonal, HumanizedRadiopharmaceuticalsCell Transformation, NeoplasticGene Expression ProfilingDiagnostic EquipmentLung NeoplasmsRNA, MessengerCase-Control StudiesGRB7 Adaptor ProteinTyrphostinsBase SequenceCytodiagnosisInfant, NewbornCohort Studies