SumatriptanCluster AnalysisSerotonin Receptor AgonistsReceptor, Serotonin, 5-HT1DTryptaminesMigraine DisordersReceptor, Serotonin, 5-HT1BReceptors, SerotoninErgotamineDihydroergotamineSerotonin 5-HT1 Receptor AgonistsVasoconstrictor AgentsCluster HeadacheMethiothepinArteriovenous AnastomosisSerotonin AntagonistsMultigene FamilyNaproxenProchlorperazineMeningeal ArteriesOxadiazolesGene Expression ProfilingDura MaterOligonucleotide Array Sequence AnalysisKetanserinSerotoninPhylogenyIndolesProstaglandin Endoperoxides, SyntheticPrincipal Component AnalysisMolecular Sequence DataRandom Amplified Polymorphic DNA TechniqueDiscriminant AnalysisMethysergideSulfonamides15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic AcidTrigeminal Nucleus, SpinalOrganotin CompoundsMigraine without AuraGenetic VariationIndependent Practice AssociationsSpace-Time ClusteringDNA FingerprintingTrigeminal GanglionSequence Analysis, DNATrigeminal NerveInjections, SubcutaneousAlgorithms