Coronary VasospasmVasospasm, IntracranialAngina Pectoris, VariantErgonovineCoronary VesselsCoronary AngiographyIsosorbide DinitrateElectrocardiographySubarachnoid HemorrhageCoronary Artery DiseaseCoronary CirculationVasodilator AgentsDiltiazemAngioplasty, Balloon, CoronaryVasoconstrictionCoronary StenosisAngina PectorisCalcium Channel BlockersMyocardial InfarctionAcetylcholineCoronary Artery BypassCardiac Catheterizationrho-Associated KinasesNitratesCoronary DiseaseBasilar ArteryCoronary AneurysmCoronary ThrombosisIschemic Attack, TransientCerebral AngiographyCoronary Restenosis