Importance and Implications of Sub-Categorization of Chronic Headache and the Incidence in General Medical OPD of a Teaching Hospital. Medical Forum Monthly, [S. l.], v. 34, n. 1, 2023. Disponível em: https://medicalforummonthly.com/index.php/mfm/article/view/72.. Acesso em: 26 dec. 2025.