Vertebral Artery DissectionVertebral ArteryAneurysm, DissectingCarotid Artery, Internal, DissectionLateral Medullary SyndromeVertebrobasilar InsufficiencyCerebral AngiographyMagnetic Resonance AngiographyHeadacheChiropracticNeck PainIntracranial AneurysmSubarachnoid HemorrhageCoronary AneurysmTomography, X-Ray ComputedDissectionCerebral InfarctionMagnetic Resonance ImagingBasilar ArteryArteriesAngiographyFibromuscular DysplasiaCarotid Artery, InternalSubclavian ArteryAnticoagulantsHorner SyndromeNeck InjuriesSubclavian Steal SyndromeFollow-Up StudiesBrain Stem InfarctionsAngiography, Digital SubtractionCarotid ArteriesStentsCarotid Artery DiseasesRenal ArteryRupture, SpontaneousEmbolization, TherapeuticMesenteric Artery, SuperiorPuerperal DisordersPulmonary ArteryNeckTreatment OutcomeHypoglossal Nerve DiseasesCerebral ArteriesAortic AneurysmAneurysm, RupturedNeck DissectionInfarctionCervical VertebraeAneurysm, FalseCranial Nerve DiseasesCeliac ArteryArterial Occlusive DiseasesWounds, NonpenetratingHematoma