Boone, Dayany Leonel, Emanuelle Ferreira Barreto, Felipe Sales Parreira, Henrique Carneiro de Campos, and Lucas Roquim e Silva. “Warfarin in the Treatment of Refractory Chronic Cluster Headache: A Case Report and Review in Therapeutic Options”. Headache Medicine 13, no. 2 (June 15, 2022): 133–136. Accessed November 23, 2024. https://headachemedicine.com.br/index.php/hm/article/view/607.