Sawada, Luis Armando, Beatriz Marques dos Santos, Lorrane Campidelli Arthuzo, Thassia Cavalcante de Oliveira Moraes, Ana Carolina Montouro Storarri, Annelise Akemi Higa Lee, Bruno Pissolati Mattos Gonzaga, and Renan Barros Domingues. “Sphenopalatine Ganglion Block in Refractory Cluster Headache: A Case Report”. Headache Medicine 15, no. Supplement (August 15, 2024): 78. Accessed November 21, 2024. https://headachemedicine.com.br/index.php/hm/article/view/1205.