Bilateral sphenopalatine and bioccipital block as a method for reversing chronic migraine: a case of refractory headache following meningeal cryptococcosis. Headache Medicine, [S. l.], v. 15, n. Supplement, p. 142, 2024. Disponível em: https://headachemedicine.com.br/hm/article/view/1285. Acesso em: 22 jan. 2026.