Vertebral Artery DissectionVertebral ArteryAneurysm, DissectingCarotid Artery, Internal, DissectionLateral Medullary SyndromeVertebrobasilar InsufficiencyCerebral AngiographyMagnetic Resonance AngiographyHeadacheChiropracticNeck PainIntracranial AneurysmSubarachnoid HemorrhageCoronary AneurysmTomography, X-Ray ComputedDissectionMagnetic Resonance ImagingCerebral InfarctionBasilar ArteryArteriesAngiographyCarotid Artery, InternalFibromuscular DysplasiaAnticoagulantsSubclavian ArteryHorner SyndromeNeck InjuriesFollow-Up StudiesSubclavian Steal SyndromeClot RetractionBrain Stem InfarctionsAngiography, Digital SubtractionStentsCarotid ArteriesCarotid Artery DiseasesRenal ArteryRupture, SpontaneousTreatment OutcomeEmbolization, TherapeuticMesenteric Artery, SuperiorPulmonary ArteryPuerperal DisordersNeckHypoglossal Nerve DiseasesCerebral ArteriesAortic AneurysmAneurysm, RupturedNeck DissectionInfarctionCervical VertebraeAneurysm, FalseCranial Nerve DiseasesHematomaArterial Occlusive DiseasesCeliac ArteryWounds, NonpenetratingCoronary AngiographyCervical Atlas