title: HEADACHE, ITS CAUSES AND TREATMENT.
mesh_terms: D001932:Brain Neoplasms; D004358:Drug Therapy; D005156:Facial Neuralgia; D006261:Headache; D006406:Hematoma; D006408:Hematoma, Subdural; D006632:Histamine; D006801:Humans; D008581:Meningitis; D008881:Migraine Disorders; D009437:Neuralgia; D013345:Subarachnoid Hemorrhage; D014277:Trigeminal Neuralgia
chemical_list: D006632:Histamine
keywords: BRAIN NEOPLASMS; DRUG THERAPY; FACIAL NEURALGIA; HEADACHE; HEMATOMA, SUBDURAL; HISTAMINE; MENINGITIS; MIGRAINE; NEURALGIA; SUBARACHNOID HEMORRHAGE; TRIGEMINAL NEURALGIA