Coronary VasospasmVasospasm, IntracranialAngina Pectoris, VariantErgonovineCoronary VesselsCoronary AngiographyIsosorbide DinitrateSubarachnoid HemorrhageElectrocardiographyCoronary Artery DiseaseCoronary CirculationVasodilator AgentsCerebral ArteriesDiltiazemVasoconstrictionAngioplasty, Balloon, CoronaryCoronary StenosisCalcium Channel BlockersAngina PectorisAcetylcholineMyocardial InfarctionCoronary Artery BypassCardiac Catheterizationrho-Associated KinasesCerebral AngiographyNitratesCerebral InfarctionBasilar ArteryCerebrovascular CirculationCoronary DiseaseMiddle Cerebral ArteryIschemic Attack, TransientCerebral PalsyCoronary AneurysmCoronary ThrombosisIntracranial AneurysmBrainBrain IschemiaPapaverineCoronary RestenosisTreatment Outcome