Peres, Mario Fernando Prieto, Daniel Krempel Amado, André Leite Gonçalves, Reinaldo Ribeiro, Jorge Roberto Pagura, and Luiz Paulo de Queiroz. 2011. “The Need for Preventive Therapy in Primary Headaches”. Headache Medicine 2 (2):46-49. https://doi.org/10.48208/HeadacheMed.2011.10.