Lee, Annelise Akemi Higa, and Renan Barros Domingues. “The Effectiveness and Safety of Cranial Nerve Block in Migraine: A Critical Review”. Headache Medicine 14, no. 1 (March 31, 2023): 7–12. Accessed May 13, 2024. https://headachemedicine.com.br/index.php/hm/article/view/759.