CABRERA-TENECELA, L. M.; MACANCELA-SACOTO, G. M. Impact of vaccination in reducing daily mortality during the covid-19 pandemic. South American Research Journal, [S. l.], v. 2, n. 1, p. 27–32, 2022. DOI: 10.5281/zenodo.6763486. Disponível em: https://sa-rj.net/index.php/sarj/article/view/17. Acesso em: 15 nov. 2026.