Oliveira, A. B. de, Nogueira, E. A. G. and Peres, M. F. P. (2023) “Migraine Preventive Treatment Failure: A Real-World Study in a Tertiary Clinic in Brazil”, Headache Medicine, 14(Supplement), p. 76. Available at: https://headachemedicine.com.br/index.php/hm/article/view/919 (Accessed: 9 May 2024).