Vertebral Artery DissectionVertebral ArteryAneurysm, DissectingCarotid Artery, Internal, DissectionLateral Medullary SyndromeVertebrobasilar InsufficiencyCerebral AngiographyMagnetic Resonance AngiographyHeadacheChiropracticNeck PainIntracranial AneurysmSubarachnoid HemorrhageCoronary AneurysmTomography, X-Ray ComputedDissectionMagnetic Resonance ImagingCerebral InfarctionBasilar ArteryArteriesAngiographyFibromuscular DysplasiaCarotid Artery, InternalTearsSubclavian ArteryAnticoagulantsHorner SyndromeNeck InjuriesFollow-Up StudiesSubclavian Steal SyndromeBrain Stem InfarctionsAngiography, Digital SubtractionRupture, SpontaneousStentsCarotid ArteriesCarotid Artery DiseasesRenal ArteryTreatment OutcomeEmbolization, TherapeuticMesenteric Artery, SuperiorPulmonary ArteryPuerperal DisordersNeckHypoglossal Nerve DiseasesAortic AneurysmCerebral ArteriesAneurysm, RupturedNeck DissectionInfarctionCervical VertebraeWounds, NonpenetratingAneurysm, FalseCranial Nerve DiseasesCeliac ArteryArterial Occlusive DiseasesHematomaRetrospective StudiesCoronary AngiographyCervical Atlas