HeadacheHeadache DisordersTension-Type HeadacheCluster HeadacheVascular HeadachesMigraine DisordersHeadache Disorders, SecondaryGene FrequencyMigraine without AuraSpinal PunctureMigraine with AuraBlood Patch, EpiduralNeurologyAnalgesicsTrigeminal Autonomic CephalalgiasTryptaminesSumatriptanDura MaterTime FactorsPrevalenceIntracranial HypotensionQuestionnairesTreatment OutcomeTrigeminal NerveMagnetic Resonance ImagingPhotophobiaGenotypeChronic DiseasePain MeasurementAllelesRetrospective StudiesProspective StudiesTomography, X-Ray ComputedRisk FactorsMutationPolymorphism, GeneticFacial PainNeurologic ExaminationCase-Control StudiesSeverity of Illness IndexDouble-Blind MethodCross-Sectional StudiesNeck PainDiagnostic Techniques, NeurologicalFacial NeuralgiaElectric StimulationAmitriptylineFollow-Up StudiesComorbidityPseudotumor CerebriElectroencephalographyAge FactorsVibrationTemporomandibular Joint DisordersRelaxation TherapySex FactorsAcoustic StimulationBrazilAction PotentialsNeurosurgical ProceduresPeriodicityWhiplash InjuriesPrecipitating FactorsPainPain ClinicsRecurrence