Coronary VasospasmVasospasm, IntracranialSubarachnoid HemorrhageCoronary VesselsCoronary AngiographyCoronary Artery DiseaseAngina Pectoris, VariantErgonovineCoronary Artery BypassCoronary CirculationAngioplasty, Balloon, CoronaryCoronary StenosisElectrocardiographyCoronary DiseaseIsosorbide DinitrateVasodilator AgentsMyocardial InfarctionArteriesBasilar ArteryVasoconstrictionCoronary AneurysmAngina PectorisDiltiazemCardiac Catheterization