Vertebral Artery DissectionCarotid Artery, Internal, DissectionAneurysm, DissectingHorner SyndromeStrokeNeckVertebral ArteryAnterior Spinal Artery SyndromeArteriesMagnetic Resonance AngiographyMigraine DisordersBrain IschemiaCarotid Artery DiseasesCoronary AneurysmDissectionRisk FactorsSubclavian ArteryAngiographyRupture, SpontaneousCase-Control StudiesCerebral AngiographyCerebral InfarctionTomography, X-Ray ComputedCarotid Artery, InternalLateral Medullary SyndromeTreatment OutcomeCerebrovascular DisordersBasilar ArteryCervical VertebraeFibromuscular DysplasiaRenal ArteryFibrinolytic AgentsMesenteric Artery, SuperiorAcute DiseaseIntracranial AneurysmPulmonary ArteryCarotid ArteriesThrombolytic TherapyCerebral ArteriesFollow-Up StudiesTissue Plasminogen ActivatorAortic AneurysmTime FactorsCerebral HemorrhageStentsProspective StudiesPuerperal DisordersRetrospective StudiesIschemic Attack, TransientHeadacheNeck DissectionInfarction, Middle Cerebral ArteryNeck InjuriesVertebrobasilar InsufficiencyMagnetic Resonance ImagingCeliac ArteryCoronary AngiographyAnticoagulantsCoronary Artery BypassFemoral ArteryHematomaHypoglossal Nerve DiseasesBrain InfarctionAngiography, Digital SubtractionInfarction, Anterior Cerebral ArteryCranial Nerve DiseasesMesenteric ArteriesSubarachnoid HemorrhageBrain Stem InfarctionsCoronary VesselsIntracranial HemorrhagesRecurrenceAngioplasty, LaserIliac ArteryMyocardial InfarctionInfarctionMiddle Cerebral ArteryPlatelet Aggregation InhibitorsPredictive Value of TestsAngioplastyVascular DiseasesEndovascular ProceduresWounds, NonpenetratingParenteral Nutrition, Home TotalNeck PainIntracranial EmbolismIntracranial Embolism and ThrombosisCohort StudiesThoracic InjuriesIntracranial ThrombosisSeverity of Illness IndexWarfarinRadial ArteryUltrasonography, Doppler, TranscranialMammary ArteriesUltrasonography, InterventionalCarotid Artery, CommonIntracranial ArteriosclerosisComorbidityAortic Aneurysm, Thoracic