Oliveira AB de, Nogueira EAG, Peres MFP. Migraine Preventive Treatment Failure: A Real-World Study in a Tertiary Clinic in Brazil. Headache Med [Internet]. 2023 Dec. 20 [cited 2024 Nov. 21];14(Supplement):76. Available from: https://headachemedicine.com.br/index.php/hm/article/view/919