Lisboa JVM, Filho ADF, Baiak AB, Beck ATD, Kowacs PA, Mendes LSB, Marchioro IJM. Sphenopalatine and occipital nerve blocks for chronic migraine . Headache Med [Internet]. 2024 Aug. 15 [cited 2024 Nov. 24];15(Supplement):7. Available from: https://headachemedicine.com.br/index.php/hm/article/view/1077