Cluster HeadacheMigraine DisordersHeadacheVascular HeadachesMigraine with AuraMigraine without AuraHeadache DisordersTension-Type HeadacheSumatriptanTrigeminal Autonomic CephalalgiasHeadache Disorders, PrimaryPterygopalatine FossaTrigeminal NerveTryptaminesAlkadienesSpinal NervesParoxysmal HemicraniaHeadache Disorders, SecondaryTrigeminal Caudal NucleusCluster AnalysisAnisocoriaOrbitMiosisHypothalamus