Vertebral Artery DissectionVertebral ArteryAneurysm, DissectingCarotid Artery, Internal, DissectionLateral Medullary SyndromeVertebrobasilar InsufficiencyCerebral AngiographyMagnetic Resonance AngiographyHeadacheDissectionIntracranial AneurysmChiropracticNeck PainSubarachnoid HemorrhageCoronary AneurysmTomography, X-Ray ComputedCerebral InfarctionMagnetic Resonance ImagingBasilar ArteryArteriesCarotid Artery, InternalAngiographyFibromuscular DysplasiaSubclavian ArteryAnticoagulantsNeck DissectionFollow-Up StudiesHorner SyndromeAortic AneurysmNeck InjuriesSubclavian Steal SyndromeStentsTreatment OutcomeBrain Stem InfarctionsAngiography, Digital SubtractionCarotid Artery DiseasesEmbolization, TherapeuticArterial Occlusive DiseasesCarotid ArteriesRupture, SpontaneousRenal ArteryMesenteric Artery, SuperiorCerebral ArteriesNeckPulmonary ArteryPuerperal DisordersAneurysm, RupturedHypoglossal Nerve DiseasesRetrospective StudiesBalloon OcclusionBrain IschemiaInfarctionHematomaAneurysm, FalseCeliac ArteryCoronary AngiographyCranial Nerve DiseasesTime FactorsFemoral ArteryCervical VertebraeAortic Aneurysm, ThoracicWounds, NonpenetratingBlood Vessel Prosthesis ImplantationEndovascular ProceduresCoronary Artery BypassCoronary VesselsAngioplasty