Vertebral Artery DissectionVertebral ArteryAneurysm, DissectingCarotid Artery, Internal, DissectionLateral Medullary SyndromeVertebrobasilar InsufficiencyCerebral AngiographyMagnetic Resonance AngiographyHeadacheChiropracticIntracranial AneurysmNeck PainSubarachnoid HemorrhageCoronary AneurysmTomography, X-Ray ComputedMagnetic Resonance ImagingDissectionCerebral InfarctionBasilar ArteryArteriesAngiographyCarotid Artery, InternalFibromuscular DysplasiaSubclavian ArteryAnticoagulantsHorner SyndromeNeck InjuriesFollow-Up StudiesSubclavian Steal SyndromeBrain Stem InfarctionsAngiography, Digital SubtractionCarotid ArteriesStentsCarotid Artery DiseasesRupture, SpontaneousRenal ArteryEmbolization, TherapeuticMesenteric Artery, SuperiorTreatment OutcomePuerperal DisordersNeckPulmonary ArteryCerebral ArteriesHypoglossal Nerve DiseasesCervical VertebraeAneurysm, RupturedAortic AneurysmCervical AtlasNeck DissectionInfarctionCranial Nerve DiseasesAneurysm, FalseArterial Occlusive DiseasesWounds, NonpenetratingCeliac ArteryHematoma