StrokeBrain IschemiaCerebrovascular DisordersRisk FactorsIschemic Attack, TransientAtrial FibrillationCerebral HemorrhageProspective StudiesCerebral InfarctionCohort StudiesCarotid StenosisFollow-Up StudiesWarfarinIncidenceAnticoagulantsRisk AssessmentFibrinolytic AgentsRiskIntracranial EmbolismComorbidityPredictive Value of TestsIntracranial ArteriosclerosisProportional Hazards ModelsTreatment OutcomeHypertensionTime FactorsRecurrenceBrain InfarctionEndarterectomy, CarotidAge FactorsIntracranial HemorrhagesAcute DiseaseEuropean Continental Ancestry GroupAfrican Continental Ancestry GroupCarotid Artery DiseasesOdds RatioSeverity of Illness IndexCase-Control StudiesThromboembolismSoutheastern United StatesAspirinMagnetic Resonance ImagingMultivariate AnalysisRetrospective StudiesUltrasonography, Doppler, TranscranialParesisStroke, LacunarNew York CitySex DistributionStroke VolumeIntracranial ThrombosisTissue Plasminogen ActivatorSex FactorsBrainUnited StatesRecovery of FunctionHemorrhageMagnetic Resonance AngiographyBlood PressureCarotid ArteriesRegistriesLogistic ModelsInfarction, Middle Cerebral ArteryAge DistributionTomography, X-Ray ComputedDiabetes MellitusPlatelet Aggregation InhibitorsCerebrovascular CirculationPrevalenceThrombolytic TherapyPrognosisEmbolismLongitudinal StudiesDiabetes ComplicationsIntracranial Embolism and ThrombosisRandomized Controlled Trials as TopicAntihypertensive AgentsCerebral ArteriesHeat StrokeAnemia, Sickle CellCerebral AngiographyVertebrobasilar InsufficiencyEmergency Medical ServicesHemiplegiaLeukoaraiosisQuestionnairesSmokingRegression AnalysisDiffusion Magnetic Resonance ImagingWest IndiesCardiovascular DiseasesHispanic AmericansCarotid Artery, InternalEndarterectomyPopulationCausalityGenetic Predisposition to DiseaseMexican AmericansMyocardial InfarctionJapan