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, InternalSubclavian ArteryAnticoagulantsHorner SyndromeNeck InjuriesFollow-Up StudiesSubclavian Steal SyndromeBrain Stem InfarctionsAngiography, Digital SubtractionStentsCarotid ArteriesCarotid Artery DiseasesRenal ArteryRupture, SpontaneousTreatment OutcomeEmbolization, TherapeuticMesenteric Artery, SuperiorPulmonary ArteryPuerperal DisordersNeckHypoglossal Nerve DiseasesCerebral ArteriesAortic AneurysmAneurysm, RupturedNeck DissectionInfarctionCervical VertebraeAneurysm, FalseCranial Nerve DiseasesCeliac ArteryArterial Occlusive DiseasesWounds, NonpenetratingHematomaCoronary AngiographyCervical Atlas