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 Julho 17, 2025. https://ipp.josekarvalho.net/index.php/PRPAEH/article/view/5167.