Martins, André, Marlene Santos, e João Martins. «Assessing the Vaccine Effectiveness of Seasonal Influenza Vaccines: A Systematic Review and Meta-Analysis of Randomized Controlled Trials and Observational Studies ». Proceedings of Research and Practice in Allied and Environmental Health 1, no. 1 (Julho 9, 2023): 25. Acedido Novembro 23, 2024. https://parc.ipp.pt/index.php/PRPAEH/article/view/5167.