Castro, Daniel, Francisca Freire, Catarina Cardoso, Vera Afreixo, and Nelson Sousa. “One Year of the Pandemic in Portugal: Incidence of COVID-19”. Journal of Statistics on Health Decision 3, no. 1 (July 22, 2021): 50-51. Accessed May 4, 2024. https://proa.ua.pt/index.php/jshd/article/view/24850.