title: The brazilian contribution to the diagnosis and treatment of headache disorders.
authors: Neurology and Neurosurgery Unit, Department of Neuropsychiatry, Federal University of Pernambuco, Brazil; Neurology and Neurosurgery Unit, Hospital Esperança, Brazil.
authors: Marcelo M
authors: MM
authors: Valença
mesh_terms: D001938:Brazil; D020773:Headache Disorders / Q000175:diagnosis* / Q000628:therapy*; D006801:Humans