Rocha, R. A. da S., Silva, N. de O., Cetlin, R. S. and Fabiola Dach (2023) “Observational analysis of 12 years-experience with OnabotulinumtoxinA in the treatment of chronic migraine treated in a tertiary headache center”, Headache Medicine, 14(Supplement), p. 131. Available at: https://headachemedicine.com.br/index.php/hm/article/view/992 (Accessed: 11 May 2024).