Dura MaterHematomaHematoma, SubduralImmunoglobulin SubunitsHematoma, Subdural, ChronicHematoma, Subdural, AcutePia MaterParietal BoneArachnoidMeningeal ArteriesHematoma, Epidural, SpinalCranial SuturesCraniotomyHematoma, Subdural, IntracranialMeningesLaminectomySumatriptanEpidural SpaceTrigeminal NerveSubarachnoid SpaceHematoma, Subdural, SpinalNeurosurgical ProceduresCerebrospinal Fluid RhinorrheaSkullCraniosynostosesCreutzfeldt-Jakob SyndromeTomography, X-Ray ComputedMeningiomaMeningeal NeoplasmsSkull BaseForamen MagnumFrontal BoneTissue TransplantationLigamentum FlavumPneumocephalusScalpSpinal CanalCerebral HemorrhageSpinal Cord CompressionTrephiningCalcitonin Gene-Related PeptideSubdural SpaceIsoindolesMeningitisLongitudinal LigamentsDecompression, SurgicalTrigeminal GanglionCadaverPolytetrafluoroethyleneTrigeminal Nucleus, SpinalMagnetic Resonance ImagingPopulation CharacteristicsMigraine DisordersFatal Outcome