Armijos Ayala, Anthony Daniel, and Luis Mario Chunchi Ayala. “Usefulness of Botulinum Toxin in the Treatment of Chronic Migraine”. Ciencia Digital 7, no. 1 (January 5, 2023): 97-112. Accessed March 12, 2026. https://www.cienciadigital.org/revistacienciadigital2/index.php/CienciaDigital/article/view/2447.