Freitas, F. R. N., E. J. F. Júnior, D. J. N. Freitas, S. M. P. Caproni, D. F. de Barros, and R. P. da S. Neto. “Headache As the Most Prevalent Post-Vaccination Adverse Event After Covid-19 Vaccination”. Headache Medicine, vol. 15, no. 1, Feb. 2024, https://headachemedicine.com.br/index.php/hm/article/view/1022.