Peres, M. F. P. ., D. K. . Amado, A. L. . Gonçalves, R. . Ribeiro, J. R. . Pagura, and L. P. de . Queiroz. “The Need for Preventive Therapy in Primary Headaches”. Headache Medicine, vol. 2, no. 2, June 2011, pp. 46-49, doi:10.48208/HeadacheMed.2011.10.